The Best Ultralight Backpacks of 2025

Named after the Japanese word for ‘cloud’, the Gossamer Gear Kumo 36 ($180) is a frameless pack that rides like a dream and well qualifies as the best budget. A unique over-the-top closure system with two color options gives the Kumo a personalized look in a package that will make folks stop and second guess whether you’re on a day hike or a thru-hike.

Our favorite feature is the thickly padded shoulder straps — perfect for a frameless pack where most of the weight rides on your shoulders. Not only are they a memory foam-like material, but they are a bit wider than the industry standard, allowing the weight to distribute more evenly. Combine this with the built-in stretch mesh pockets that can accommodate 500 ml water bottles, and you’ve got a system built for crushing miles. 

The other sporty feature of the Kumo is the external pad sleeve with a removable ‘SitLight’ pad. The accessibility allows you to sit in comfort on your breaks in a matter of seconds without undoing any buckles or straps. You can also replace the standard sit pad with any other pad or foam of your choice.  And if you decide to roll in the most ultralight style, you can simply remove the standard pad and shave 2.3 ounces off your pack weight. 

On the flip side, the Kumo just isn’t that durable compared to some of our other options. It’s made with 70 and 100D Recycled Robic nylon which, while sustainable, lightweight, and affordable, isn’t the best for adventures that require bushwhacking or large swaths of time spent around cacti.

The stretch mesh has insane stretch for packability but will loosen over time and droop, in addition to also being prone to snags and tears. And this wouldn’t be the pack you want to push to the edge in terms of load — we’d recommend maximum carries of 25 pounds to reduce the stress on the stitching.

Overall, though, the Kumo is an excellent budget ultralight pack choice for cruisy trails and long-distance adventures with sub-6-day carries between resupplies. It has even been tweaked recently into a Fast Kumo version ($190) that sports a running-vest-style strap setup with dual-layered pocket storage if moving fast is your jam.

A spur on the tried-and-true Flash series, the REI Co-op Flash Air 50 ($299) is the industry old guard’s first foray into the UL pack scene, and color us surprised: they didn’t do half bad. Is it true UL at almost 2 pounds? Not quite, as we tend to aim at 16 ounces as our grail ultralight pack weight, but with a number of niceties we typically see on more mainstream packs, this is the ideal bag to dip your toe into lightweight hiking with.

Best thought of as a Flash pack cut from UHMWPE cloth, the Flash Air trims an entire pound from the OG (losing the floating top lid also helps accomplish this) but still retains a spring steel frame, ventilated back panel, pre-curved hip belt, and even load lifters. Similar to the Gossamer Gear Mariposa, this pack still offers a good amount of comfort for lightweight hikers, instead of demanding they cut base weights.

We put the Flash Air into the hands of PCT alumni Samuel Martin, who measured it against his go-to Hyperlite packs and ended up dubbing it ultralight for the masses. “It’s a common misconception that you must trade comfort for weight when using ultralight gear,” says Martin. “Even while climbing 1,000 feet in 2 miles, the Flash Air 50 felt secure and weighted on my hips.”

Besides the better-than-average carry, the Flash Air follows pretty much the standard recipe: a single-compartment tube pack, with a large front stash pocket, and side water bottle pockets round out your storage options. Those side pockets are a bit unique, however, as they’re actually split into four separate sleeves: two tall for wrangling long water bottles and two short and angled for reaching into while wearing the pack. It’s no bottom pocket, but it works well enough for on-the-go snacking.

Like most UL packs, don’t expect the Flash Air to be 100% waterproofed: Martin found that even the waterproof UHMWPE fabric isn’t impervious to a Linville Gorge rain storm, and we recommend a pack liner to keep your essentials dry. The optional REI Pack Mod accessories also feel a bit gimmicky, and the shoulder-strap phone pocket isn’t nearly as nice to use as some integrated options, such as on the HMG Contour 35.

Compared to other ~2-pound packs, the Flash Air 50 makes a compelling argument for itself as the perfect stepping stone into ultralight hiking — and even more so if you already use a Flash pack. The Gossamer Gear Mariposa is another option to consider, though you will pay a bit more for it, making the Flash Air our current recommendation for an entry-level UL pack.

When it comes to frameless packs, the Pa’lante V2 ($240) is hands down the best we’ve seen to date. With a number of thoughtful design features, the V2 is a perfect fit for ultralight thru-hikers with sub 10-pound base weights, minimalists who enjoy pouring over their spreadsheets, and fastpackers who like having quick access to a full day’s worth of snacks. 

The V2 hosts the innovative bottom pocket: a durable mesh stash spot for snacks, wind jackets, trash — you name it. A spot previously unutilized on other packs, this external storage can easily be reached with the pack still riding on your shoulders. Combine this with the ample shoulder strap pockets and reachable side water bottle pockets, and you’ve got a pack that is ready to go the distance.

On the trail, the V2 is a favorite among experienced thru-hikers with dialed-in kits on the Pacific Crest Trail and Continental Divide Trail. The snap-button roll-top closure is quick and simple, the haul loop allows you to strap on top loads, and the ice axe attachment means you’ll have the tools necessary to tackle snowy mountain passes.

All this being said, a frameless pack will always have the limitations of being… frameless. The weight is going to be riding on your shoulders, even while utilizing the stashable hip belt strap. The V2 has no rigidity, so you need to have intention when packing your pack so it rides comfortably. And if you need to pack a bear can, it’s going to take up an exceptional amount of room.

If you’re trying to rock an 8-9 day section in the High Sierras, Pa’lante also makes a slightly larger (and tougher) model called the Desert Pack, which we’ve reviewed. It’s a great pivot for those needing just a bit more space.

We loved our time on trail with the V2, tackling desert brush and high alpine excursions. The 210-denier gridstop fabric and grid mesh are quite durable for the weight, the build quality is exceptional, with bar tacking done in all the right spots, and the shoulder straps are ergonomically designed. Not to mention, we always enjoy when other backpackers see our V2 deep in the backcountry and exclaim — “Wow, are you out here for a day hike?”

Well known for its lightweight but still comfortable packs, the Gossamer Gear Mariposa 60 ($315) is the darling of the lineup and weighs just over 2 pounds. As a brand, Gossamer Gear has typically steered away from the space-age textile race and instead focused on carrying comfort, and after some good miles under the Mariposa, we think it’s a solid option.

Newly specced out in 100D and 210D Robic nylon, this pack is remarkably durable for its weight. It also hits a modest price point compared to packs made with more expensive Dyneema Composite fabrics, and, instead, puts those dollars to work in organization. Like most other packs, you’ve got the classic stretch-mesh stuff pocket, but the Mariposa takes a different tack with the side pockets with one tall (perfect for umbrellas or your tent) and two staggered — for bottles and rainwear.

Fit, too, has been dialed in, or rather: you can dial it in, with two different styles of hip belts available (as well as five sizes across those options). This is a welcome departure from the ‘get-what-you-get’ of packs like the Hyperlite Mountain Gear Windrider or Mountain Laurel Designs Exodus, and coupled with the load lifters, we felt that this was one of the most accommodating packs out there currently.

The biggest negative we noticed was its ventilation. Compared to some other models in its weight and price category, the foam sheet on the back is somewhat breathable, but it left us wishing for greater airflow. The ability to strip the pack of the pad is a handy feature, however, and the placement on the exterior of the pack means you can pop the pad out for a lunch break.

The Mariposa 60 has plenty of the hallmarks of being an excellent budget pick — save for the price, which, while still on the lower end, carries the overhead of being from a smaller brand. Instead, we like to think that the pack is a killer option for those who want an ultralight pack, but don’t want to get dinged with the wild prices. In this way, it’s similar to the Granite Gear Crown3 and Virga3 — both packs focused on carry and durability.

The Circuit has a well-worn groove in the UL scene, with near-constant rankings in annual post-season long trail surveys and a name for itself as an already overbuilt bag. Now trimmed out in Ultra fabric, the ULA Equipment Ultra Circuit ($380) is even burlier, and if you need something for bushwhacks, canyon trips, or just wailing on, this is the ultralight pack for you.

Thru-hiker Jackson Sims-Myers has around 7,000 miles notched on his hip belt, with a not small number of those completed using another ULA pack, the CDT. Now a canyoneering nut, Sims-Myers needed something with a bit of a thicker skin to endure the abrasive nature of sandstone canyons, and the Ultra Circuit was just the ticket.

“I was honestly surprised by how well the Ultra fabric held up, considering the bag wasn’t designed to withstand this particular experience,” Sims-Myers said after thrashing the pack down (and back out of) the Grand Canyon. Ultra is the new hot-ticket in pack design right now, and while there’s a weight increase, it does a good bit better than Dyneema Composite Fabric when it comes to abrasion, with UHMWPE fibers running in three directions instead of two with DCF. 

Beyond the textile difference, the Ultra version shares many features with the classic Circuit, including two side water bottle pockets, two zippered hip-belt pockets, ice axe/trekking pole retention loops, and a large front shove-it pocket. The pack carries heavier loads comfortably with its contoured shoulder straps and padded back panel.

The pack carries extremely well, featuring a 1.2-ounce carbon fiber and Delrin suspension hoop coupled with a dense foam frame and single aluminum stay. This unique design provides great load control, rigidity, and back support without compromising on weight. It’s no meat-hauler like the Stone Glacier or Seek Outside packs, but compared to many ultralight packs, the Ultra Circuit doesn’t shy away from weight.

While the Ultra fabric is inherently waterproof (and the pack uses a roll-top closure and waterproof zips), we did notice that the body itself isn’t taped, meaning water ingress can still be a problem. Price, too, should be considered, as this is one spendy pack at $380. You’re undoubtedly paying for access to the Ultra textile here, so if you don’t quite need that level of burl, consider the regular ULA Circuit — a standby pack.

Though not the lightest of ultralight packs, the ability to carry larger loads while still cutting down on weight makes the Ultra Circuit an ideal option for those heading into unkind environments for long trips.

Read Review: Ultralight, Ultra-Strong Backpack: Stone Glacier Terminus 7000 Review

The Stone Glacier Terminus 7000 ($649) is one of the more unique “haul everything” packs we’ve tested. Designed for the hyper-specific niche of big mountain goat and sheep hunting, the pack is capable of that and a whole lot more.

In essence, the pack is a single large tube of high molecular weight polyethylene attached to a world-class frame, shoulder straps, and harness. Designed to carry massive loads north of 150 pounds, this pack is a dream to carry. And thanks to smart carbon composite design, it weighs in at just 3 pounds, 15 ounces, which is super impressive, given its volume of over 115 L.

Our team tested the pack hauling loads in preparation for elk hunting, mountaineering, and general backpacking. It carries remarkably well, even with a lot of weight. While the pack is bare-bones in terms of storage solutions, it does have two internal pockets, a large external pocket, and a lid pocket, all of which can help keep items organized.

But its strength comes in hauling heavy loads. Unlike some hunting packs though, it doesn’t have a meat shelf, meaning that the load needs to be loaded internally. So, strangely shaped objects (like firewood or chainsaws) will be awkward to load. For those who need to haul heavy loads though, the Terminus 7000 is a unique, excellent choice that carries weight amazingly well.

After multiple thru-hikes now, we’ve settled on the Hyperlite Mountain Gear Southwest 55 ($379) as just about the best ultralight option from the brand. Even with new textiles making a big scene, the Dyneema Composite Fabric build of this pack is simply too good to stray from, and the smart feature set tacks on just what you need while having the restraint to do without what will weigh you down.

Available in three different volumes (40, 55, and 75 L), the 2-ounce penalty between the 40 and 55 volumes makes the middle child an easy recommendation for anyone setting out on anything from a long weekend to an entire long trail. Otherwise, this pack is basic: It has one main compartment with a bladder holder, a large stash area in the front, two side pouches, and an ice axe loop. The design is a near paradigm at this point.

The roll-top closure keeps water out and the whole pack compresses down easily with a strap. The overall volume of the pack can be adjusted significantly by rolling or unrolling it to the desired level, and four side compression straps aid in the cause (as well as wrangling tall kit stashed in the side pockets, like trekking poles or umbrellas).

The solid Dyneema Hardline pockets differentiate this pack from the similar HMG Windrider and Junction packs, and we found it makes the perfect spot to stash all of your essentials throughout the day. It’s not quite as nice for drying a wet tent fly as the mesh pocket on the Windrider or Junction, but we think the added durability is worth the trade.

It’s expensive, but dang, this pack is durable! In our testing, despite rolling, and unrolling the top closure hundreds of times, placing sharp objects in the main compartment, sitting on it in rafts, and getting brushed and harassed by thorny wilderness on miles-long treks, there was not a single hole or tear. What will occur, however, after about a thousand miles of trail use, is that the interior threads of the DCF fabric in the collar will begin to become loose.

It’s the price you pay for ultralight materials, and with careful use (and some Dyneema repair tape), you can get many more miles out of this pack. For the thru-hiker or weight-conscious weekend warrior looking for top-of-the-line ultralight performance that doesn’t skimp on durability, the Southwest 55 may just be the perfect pack.  

At the confluence of running vests and ultralight packs lands the Mountainsmith Zerk 40 ($219). This roll-top bag has four accessible dual-layered pockets, a shoulder strap design with ample padding and surface area, and a hydration sleeve with an external port, meaning you’ll be riding comfortably and quickly when fastpacking out on the trail.

The most appealing design feature of the Zerk 40 is its running vest style build. The shoulder straps are padded with some extra width at the bottom, where the dual-layered stretch mesh pockets reside. You could seriously fit a full day’s worth of snacks and an oversized smartphone here comfortably. Combine this with the cinchable water bottle pockets on either side and you’ll truly be able to move quickly with everything you could ever want in reach. 

The Zerk 40 also hosts a removable frame sheet for some rigidity and comfort, a removable 1.5-inch hip belt strap to reduce bounce on the downhill, and a hydration sleeve and port to really round out its water carrying capacity. The daisy chain setup also encircles basically the entire pack — if you enjoy messing around with cord and compression strategies, this is certainly the pack for you. Dual ice axe loops also mean you’ll be ready for snowy mountain passes or even climbing couloirs if that’s your jam. 

On the flip side, the Zerk 40 is a bit heavy for its capacity and hauling ability, weighing in at almost 2 pounds. The polyester stretch mesh is everywhere — great for expanding to store gear, but it will sag over time. And the most unfortunate flaw of the Zerk 40 is that it only comes in one size for folks with 16” to 19” torsos. Taller folks could probably order one if they never plan on utilizing the hip belt strap, but shorter folks will want something a bit more custom made for their size. 

Black Diamond’s answer to the ultralight wave is impressive, to say the least, yet expensive, to say the worst. Let’s get down to brass tacks on the novel Betalight 45: if $400 for a sack with straps turns you away, it may be best to read on. Get into the nitty gritty, though — and it just might be worth it.

Black Diamond has been angling toward the mountain-running scene for a few years now, but this pack is its first effort at a backpacking pack that isn’t dialed in for the alpine. Perhaps the most important factor here, partially contributing to the high price tag, is Challenge Sailcloth’s Ultra 200 body fabric — the same material that makes the ULA Equipment Ultra Circuit so tough. BD certainly read the room by choosing this material, and the pack has proven tough.

Thru-hiker Chris Carter recently helped map out a new trail system in Kenya, and four days and over 60 miles later, the pack was hauled through hell and came out without a scratch (well — without a tear). Not only did it fend off endless thorns and sharp bamboo, but the waterproof fabric (coupled with taped seams) kept everything dry through torrential downpours. 

BD whittled the pack’s weight down to a respectable 31.4 ounces by employing this extremely durable fabric, which offers up a comfortable ride to boot. The running-vest-inspired shoulder harness is unusually wide, distributing weight well — but is sparsely padded. The hip belts are also quite thin (very reminiscent of Hyperlight Mountain Gear, also), meaning you’ll want to keep your load to a modest ultralight weight when using this pack.

We love the massive front shove-it pocket but wish you didn’t have to unclip the top strap to access it. The large side pockets hold contents securely, but it’s difficult to remove bottles on the go. The hip belt pockets easily accommodate larger iPhones and plenty of snacks, but the zipper sits a bit low on the pouch, meaning contents spill out easier than other designs we’ve seen. We found this out the hard way.

These gripes aside, the level of durability you get at such a light weight with the Betalight 45 pack is honestly shocking. BD still has a bit of refining to do, in our opinion, but this has the potential to be one of the more hardworking ultralight packs out there. For something with a bit more proven R&D (and cheaper), we suggest snagging a Hyperlite Mountain Gear Southwest or, if you’re after the same Ultra material, the ULA Equipment Ultra Circuit — at a slight weight ding.

After using a Southwest 40 for a thru-hike of the PCT, Senior Editor Nick Belcaster was keen on getting some miles under the new Hyperlite Mountain Gear Contour 35 ($329), which required him to cut some luxuries and focus on the bottom line. After having now used the pack for sections of long trails and alpine packraft bushwhacks, his opinion: “This pack is Hyperlite hitting its stride.”

So what’s different? Well, not a lot, but also a good bit. For one, the bag is Hyperlite’s first dedicated frameless overnight pack, which thankfully is mated up to a redesigned set of shoulder straps that are a full 3.25″ inches wide. This puts the pack a cut above the brand’s Unbound, which sports a single aluminum stay and removable hipbelt. On the Contour, you’re locked into minimalism, but that’s not a bad thing: Belcaster found the suspension better than his Southwest.

The classic DCF build is a constant, and it’s a hardwearing textile that our miles of trail use are still trying to get to fail. Mated to that is a front Dyneema Stretch Mesh stuff pocket that wrangled our water filter, rain shell, and bathroom kit easily. The side water bottle pockets are pleated to add a good bit of material, and will accommodate two 1-liter bottles, in our experience. Besides this, there’s little else adorning the Contour, save for two paracord side lashings, where we like to dry our socks.

To be fully honest, the Contour does suffer from a bit of convergent evolution, where the idea of the modern ultralight pack settles into a familiar groove: The stretch bottom pocket — a feature we’ve grown to love on other packs like the Pa’lante V2 — makes an appearance here, complete with the corner cutout to slip your garbage into. Imitation/flattery and all that aside, the addition raises all boats here, and we loved stashing our day’s worth of snacks in the pocket every morning.

Like the Pa’lante, you probably already know if the Contour is right for you. At 35 L of internal storage, this pack is squarely in the ‘single-hiker shelter, 30-degree quilt, probably-cold soaks’ camp and will necessitate putting down bigger mileage days to avoid packing too much food. Thankfully the 6.5 L of external storage is easy to use. During our testing, we also felt a bit uneasy fully hefting the pack by the grab loop, as it felt a bit flimsy.

But as they say, light is right, and if your base weight is consistently south of 10 pounds (and you hit that 3 MPH pace on the regular), the Contour 35 can be an excellent UL pack to carry it all with. The internal volume will challenge some to really trim the fat, but on well-supplied long trails, you could get away with a lot wearing this pack.

With this pack, it’s all in the brand’s name. Starting at 13 ounces (that’s not a typo), the frameless LiteAF ECOPAK 30L Curve ($235) seems to float from your hand when you pick it up. People are really thru-hiking with this?

More and more, these snazzy-colored, funky-shaped packs can be seen trotting (swiftly) down the length of the PCT, AT, or pretty much anywhere fast and light adventurers are getting after it. As a true cottage brand, LiteAF offers a huge variety in custom-building your own pack, from standards like torso and hip belt sizing to even tweaking the color of the pack body and pockets.

Available in three different styles of material (with rugged Ultra and DCF also options), the ECOPAK version of the Curve is the cheapest of the bunch, but that doesn’t mean the EPLX200 can’t hang. This fully recycled polyester textile uses a waterproof film backing and weighs in at 5.9 ounces/yard, meaning its a bit heavier than the comparable 200-denier Ultra at 3.5 ounces/yard, but its a more economical option, and as a bonus, it can be printed with all sorts of different patterns.

As a frameless pack, you’ll need to be smart in your packing of the bag to lend it structure from the contents and avoid any odd shapes poking into your back. We’ve had good luck in using a Gossamer Gear Thinlight Foam Pad folded into a back panel, though some hikers will also just use their inflatable pad. We found that the load carry on the Curve was as good as the frameless MLD Exodus or Pa’lante V2 and that the narrower pack profile aided in keeping it clear while we hiked.

With 30 L of internal capacity (and an extra 15 L of external storage), your kit needs to be pretty dialed to make a long-distance backpacking trip work in this. The 30L Curve is for those with base weights under 10 pounds who are looking to lighten their setup even more (think: your tarp is also your rain gear, type vibe).

Despite such a low weight, this pack is still featured enough to make long-distance travel comfortable and efficient, and they offer several add-ons (such as a stretch mesh bottom pocket and various shock cords) to increase storage capabilities. While the pack doesn’t ship with hip belts, you can separately order a 1-inch webbing hip belt or a simple padded hip belt if you feel the need.

For the lightest, fastest adventures you could dream of, Lite AF’s 30L Curve is about as ultralight and streamlined as they come. Take care of it, pack it wisely, and it could be the ticket to that next FKT you’ve been eyeing.

Read Review: Granite Gear Crown3 60 Review: Ultralight Pack, Heavy Potential

The Granite Gear Crown3 ($240) weighs just 2 pounds, 4 ounces, and has a 60L carrying capacity. Even at such a low weight, it can transform from a weekend heavy-hauler to a lightweight bag for a long thru-hike. Much like this pack’s predecessor, the Crown2 60, the Crown3 60 is versatile, light, and relatively durable for an ultralight backpack.

We tested the Crown3 60 on a 32-mile 4-Pass Loop hike in the Colorado Rocky Mountains, and found the pack carried really well, even with a heavier-than-average load, thanks to the optional ($12, sold separately) aluminum stay. This beefs up the otherwise good VC Mark 3 Frame Sheet, giving the pack a weight capacity of up to about 45 pounds.

During our test hikes, we found the pack very comfortable and versatile, especially for its light weight and low cost. We also loved the huge side pockets, large stretch-mesh back panel, and removable, just-right-size top lid pocket.

The Crown3 uses the same material as the Crown2’s 210-denier, high-tenacity nylon, which we put through more than 2,000 miles of testing. So we expect it to hold up at least as well as the old version.

Compared to other lightweight packs that otherwise follow a familiar mold, we tend to suggest the Gossamer Gear Mariposa or REI Co-op Flash Air more frequently than the Crown3 simply because these packs come ready-to-hike with supportive frames. This pack does slide in a good bit cheaper than both of these, however, so if you are feeling the squeeze, it can make a great option.

Serious ultralight backpackers heap praise on the Mountain Laurel Designs Exodus 55L ($245-325), and for good reason. The frameless pack carries a load of 20-25 pounds and weighs in at a scant 18 ounces. The brand calls it the “lightest full-size, full-featured, frameless pack made.”

It’s a popular design for thru-hikers or others doing big, lightweight miles who may be carrying a bear bin to protect their food from bruins. At 12 inches wide, 7 inches thick, and 35 inches high, it will fit a small bin with room to spare for other gear.

True to its cottage industry roots, the Exodus is always changing for the better. The most recent pivot is to offer the pack in two different varieties of Challenge Ultra fabric: UltraGrid and Ultra X. The former is a double UHMWPE ripstop grid mated to recycled nylon, and the latter is the most cutting-edge stuff currently out: a 200D Ultra weave with an additional two plies of UHMWPE. The high-test stuff will run you $325 a pack, but for the money, it’s incredible stuff.

The Exodus has a very supportive, cushioned hip belt, especially for an 18-ounce pack. The SuperWick Mesh-lined waist belt wings with 1.5-inch webbing, and the buckle adjusts from about 28 to 45 inches.

It’s a simple design that serves the needs of ultralight hikers with no unnecessary features. Customers can add a lid or hip belt pockets and shoulder pockets if they so desire. The most glaring issue may actually be finding a proper use for all 55 L of space: frameless packs have a definite weight limit, which means you’ll be limited to bulky — but lightweight — kit, which makes this pack pretty niche. For most folks, a better all-arounder is likely the Durston Kakwa or Hyperlite Southwest, or, if you want to stay frameless, the Pa’lante V2.

For the lightest and fastest hiking missions where weight and efficiency are the biggest concerns, the Exodus has proven to be one of the best ultralight backpacks out there.

Read Review: Most Comfortable Ultralight Pack at a Low Price: Granite Gear Virga3 Undyed Review

The very first thing you notice when sliding a new Granite Gear Virga3 ($200) from the box is the wild-looking shoulder harness, with even more adjustability than you’d find on the beefy Osprey Aether. Not one, but two rows of daisy chains decorate the top of this pack, and afford the shoulder straps lateral and longitudinal adjustment with simple gatekeeper buckles. How is this still an ultralight pack?

Add in a fully adjustable pocketed hip belt, large side and front mesh pockets, side and front compression straps, all with a durable nylon construction, and you’d think this pack wound up in the wrong guide. But the Virga3 hovers miraculously around a pound and a half and can be stripped down further to a minimal trail weight of 1.18 pounds.

This does come with a caveat, however. Granite Gear achieved such an impressively low weight by leaving out a frame sheet or stays. The structure of the pack is meant to come from the load itself, and they have included top and bottom pad pockets inside the main compartment where you can insert a folding foam pad.

This is a unique design, but we found that some accordion pads were too large for the pockets. Additionally, many people prefer to hike with inflatable pads to save space. We also don’t find compression straps to be very effective on frameless packs, so we don’t generally use the ones on the Virga unless we have a pad in the back.

Despite all this, we found the Granite Gear Virga3 to be among the more comfortable ultralight packs we tested. Unless you’re toting seriously heavy loads, it carries quite well even without a frame or inserted foam pad. For a budget pack with a shorter learning curve, however, we tend to recommend the framed Gossamer Gear Kumo 36, as packing a 55-liter frameless pack is a bit of an art.

We love the sleek design, incredible torso adjustability, and competitively low weight. This is also a very affordable pack, and we believe it would be a great option for those looking to snag a more feature-packed ultralight model for long treks.