There’s been an explosion of running vests and hydration packs in the past few years. Not only does that mean there are more options, but they’re also more comfortable and functional than ever before. Improved designs have led to less bounce and chafing and more comfort mile after mile.
Current authors Chris Carter and Matthew Medendorp are both religious trail and road runners, clocking endless miles each week in pursuit of PRs and podium finishes. They know the importance of proper hydration on long runs and settled for only the best in the creation of this guide.
From snow-packed trails in Eastern Sierra’s Mammoth Lakes to high-altitude training grounds in Northern Arizona to the wilds of New Zealand, we’ve put a lot of miles on hydration vests. We tested for overall comfort, capacity, fit, and ease of use. And, while there isn’t a single hydration pack that will work for every person, we’ve included a variety of options to fit your style of running.
Editor’s Note: Fresh for spring as of April 7, 2025, we’ve tested the newest version of the popular Patagonia Slope Runner.
The Best Running Hydration Packs & Vests of 2025
- Gear Capacity: 7L
- Weight: 324 gr
- Materials: ECONYL yarn – recycled nylon with a PFC Free DWR
- Best For: All-day mountain runs, day hiking
Pros
- Minimal to no bounce while running
- Cleverly designed and spacious pockets
- Pull tabs everywhere you need them
- Quick adjustment points for on-the-fly tightening
- Pocket for bladder if preferred
Cons
- High price point
- Lower water bottle placement
- Gear capacity: 4 L
- Weight: 9.5 oz. with bladder
- Materials: Nylon, polyester
- Best for: Short to medium trail and road runs
Pros
- Affordable
- Breathable
Cons
- Not the best storage capabilities
- On the heavy side for how small it is
- Gear capacity: 3 L
- Weight: 12.4 oz.
- Materials: Polyester
- Best for: Staying visible while running at night on busy roads or trails
Pros
- 6-lumen light thread affords stellar visibility in the dark
- Easy on/off switch with three different modes
- Lightweight for having lights involved in the design
- Comfortable, breathable mesh back panel
- IPX4 water resistance
Cons
- Low gear capacity
- Not the easiest to adjust on the go
- Not many different storage options
Other Trail-Worthy Packs, Field Tested
- Gear capacity: 4 L
- Weight: 6.9 oz (without bladder)
- Materials: 100% recycled polyester wiht mesh back pancels
- Best for: Long days with minimal storage needs
Pros
- Effective stash pockets
- Lightweight fit
- Great trekking pole carrying options
Cons
- No zippered pockets on front
- Small storage capacity
- Gear capacity: 7 L
- Weight: 13 oz.
- Materials: Nylon, polyester
- Best for: Going light and fast in hot temps
Pros
- Extremely breathable
- Chafe-resistant materials
- Solid storage options
- Great adjustable sizing system
Cons
- Slightly heavier than previous iterations
- A bit pricey
- Gear capacity: 4 L
- Weight: 7 oz.
- Materials: 4-way stretch mesh
- Best for: Those looking for a comfortable and lightweight vest, with solid durability, for everyday trail runs.
Pros
- Stretchy side panels improve fit
- Lightweight but durable
Cons
- Expensive
- Gear capacity: 12 L
- Weight: 9.77 oz.
- Materials: Polyamide, elastane, polyethylene, polyester
- Best for: When you need to maximize comfort while carrying gear and water
Pros
- Extremely comfortable, snug fit
- Zero bounce while running
- Solid closure system
Cons
- Expensive
- Gear capacity: 1.5 L (M/L)
- Weight: 10 oz.
- Materials: Recycled nylon stretch mesh
- Best for: A unisex fit, hot pavement runs, everyday training
Pros
- Thoughtful pocket layout
- Comfortable, no-bounce fit
Cons
- On the heavy side
- Gear capacity: 11 L
- Weight: 7.4 oz.
- Materials: 40-denier ripstop nylon, engineered knit mesh
- Best for: Training runs, ultramarathons
Pros
- Easily adjustable sternum straps
- Comfortable fit
- Lightweight and breathable
Cons
- Whistle bounces around and gets in the way
- Gear capacity: 7 L
- Weight: 7.2 oz. (with accessories)
- Materials: Nylon, elastane
- Best for: Easy nutrition access and loaded-down mountain runs
Pros
- Easy access to fuel and hydration
- Fits well when loaded down
- Good ventilation
Cons
- Tends to bounce when not fully packed
- Lack of zippered pockets — only one for securing keys
Hydration Packs Comparison Chart
Hydration packs | Price | capacity | Weight | Best for |
Norrøna senja econyl70 7L vest Hydration Vest | $229 | 7 L | 11.4 oz. | Performance or comfort any day of the week |
Nathan HyperNight Quickstart 2.0 4L | $100 | 4 L | 9.5 oz. with bladder | Short to medium trail and road runs |
Ultimate Direction FastPack 20 | $150 | 23.4 L | 1 lb., 4.8 oz. | Fastpacking, day hiking, ultra running |
Nathan Laser Light Pack | $120 | 3 L | 12.4 oz. | Staying visible while running at night on busy roads or trails |
Nathan VaporAir 3.0 7L | $160 | 7 L | 13 oz. | Going light and fast in hot temps |
Patagonia Slope Runner Vest | $160 | 3 L | 6.2 oz. | Ultralight outings and everyday runs |
Black Diamond Distance 4 Hydration Vest | $150 | 4 L | 7 oz. | Comfortable and lightweight vest with solid durability for everyday trail runs |
Salomon Advanced Skin 12 Set | $160 | 12 L | 9.7 oz. | When you need to maximize comfort while carrying gear and water |
Osprey Duro 1.5 Hydration Vest | $120 | 1.5 L | 10 oz. | A unisex fit, hot pavement runs, everyday training |
CamelBak Zephyr Pro Vest | $160 | 11 L | 7.4 oz. | Training runs, ultramarathons |
Arc’teryx Norvan 7 Hydration Vest | $160 | 7 L | 7.2 oz. | Easy nutrition access and loaded-down mountain runs |

How We Tested Hydration Packs
Our Expert Testers
Our Testing Process
Our Testing Grounds
Buyers Guide: How to Choose a Hydration Pack for Running

Types of Running Vests

Recreational
Performance

Fastpacking

Bottles vs. Reservoirs

Capacity: Water & Gear

Sizing

Organizational Features


Breathability
Comfort

Visibility

Price & Value
Budget
Mid-Tier
Premium
Frequently Asked Questions
Running vests sit closer to the body like a piece of clothing, so they ideally don’t move while you run. They often sit high on the back, instead of reaching the low back like a backpack. They also include side panels or straps that connect the front to the back to keep it tight on your body.
Running vests often provide pockets on the shoulder straps for easy access to your phone, snacks, and water. They often include or provide space for soft flasks for water. They also often include space for a hydration reservoir.
Hydration packs fit more like a backpack, with shoulder straps and potentially a hip belt instead of the vest design. They provide space for a hydration reservoir, and sometimes also include pockets for soft flasks. They are designed to easily access water but are not as tightly fitting as running vests. Hydration packs are useful for some runs, but they can also be used for biking, hiking, and more.
If you find yourself feeling dehydrated on your runs but don’t currently have a good solution to the problem, you may want to consider running with a hydration pack or vest.
If you are regularly running for 2 hours or longer, it is recommended to drink about 1-2 L of water during your run. A hydration pack can offer this with easy on-the-go access.
For short runs that are less than 30 minutes in length, a hydration pack likely is not necessary. However, heat and climate are always factors to consider, too.
A well-fitted hydration pack should not drastically change your running form, but wearing one will certainly take some getting used to.
Hydration packs that are made from elastic, and stretchy materials hug the body and prevent the entire pack from bouncing during your run. If your hydration pack is bouncing, it may negatively affect your running form and should be adjusted.
Hydration packs are available with various reservoir capacities. Most options can carry 1-3 L of water. Choosing a hydration pack comes down to how long you plan to run while using it.
If you will be running for very long periods without stopping at water stations or sources, you will want a larger capacity hydration pack to keep you going throughout your entire run. For example, ultra-runners will likely need greater capacity packs, while shorter-duration runners may be able to get by with a smaller capacity.
Remember that the more water you put in your pack, the heavier it will be. For most runners, 2 L of water in the pack can offer a good balance between weight to carry and available water.
Most hydration packs are made to fit everybody. However, it’s a good idea to check the pack’s specs to ensure that it will work for someone with your body type and size.
A hydration pack helps prevent dehydration while running or exercising. Sustained physical activities don’t often allow easy access to water bottles. So, the use of a hydration pack offers quick access to water without having to pause your workout.
It’s a good idea to wear a hydration pack any time you’ll be running for long periods of time. A standard rule of thumb is that humans should drink 8 ounces of water every 20 minutes while running.
If you are running for 30 minutes or longer, especially in hot or dry conditions, a hydration pack can be an essential way to stay safe and hydrated.
Neither is strictly better, they each have their own strengths and weaknesses.
A hydration backpack tends to be versatile enough to be used for other activities aside from running. Backpacks are often bigger and offer more capacity than hydration vests.
Hydration backpacks are good for runners who will be actively running unassisted for long distances and durations, such as ultramarathoners.
A hydration vest is probably the best pick if you are in search of maximum running comfort. A well-fitted vest sits high on the back and remains close to the body while running.
Another benefit of a hydration vest is that it offers easier access to your things while you are running. You don’t need to take the vest off or reach behind you to access its storage.
A properly fitted hydration pack should not change the way you run. If you plan to participate in a race or major planned run, it’s a good idea to run several times beforehand with your pack on so you can get used to it. Then, you can make any necessary adjustments to its fit.
Make sure to organize all your gear so the weight is evenly balanced and there isn’t too much in the front or the back. Also, make sure you can access the gear you need quickly, ideally without having to take your hydration pack or vest off.

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