Osprey Seral 4
Specs
- Weight 442 grams (w/ bladder)
- Capacity 4 liters
- Water Bladder Yes, 1.5L
- Water Bottles No
- Waist Size 27” to 42”
Pros
- Great airflow through mesh hips and “Airscape” back panel
- Simple bladder and routing makes refills quick
- Adjustable nozzle speed
- Bladder “handle” is a nice touch, makes filling and installing the bladder very easy.
- Easy to find old colors on sale at a discount
Cons
- Simple layout - there is really only one main section with a zippered internal pocket
- No hip pockets
