Osprey UltraLight Dry Bag Review

Torben Lonne
By
Torben Lonne
Editor and Co-founder at DIVEIN.com
Torben traveled to South East Asia for scuba diving and never really stopped his search for new adventures. His affinity for gear that works and his...
- Editor and Co-founder at DIVEIN.com
Osprey UltraLight 12 dry sack standing upright in riverside grass, water beaded across the black ripstop
Branding is limited to the eagle logo and the 12L size marking. Everything else is plain ripstop, which is exactly what you want from a bag whose only job is keeping water out.
Osprey UltraLight 12 dry sack lying on its side in grass with the grab loop and 12L marking showing
Laid flat you can see how little structure there is. The sack is essentially fabric and a buckle, so it packs down to nothing when it is empty.
Our tester's Osprey UltraLight 12L dry sack rolled shut and beading water in grass beside a pond
Water beading on the surface instead of soaking in is the sign of a coating still doing its job. That roll top and single buckle are the only thing between your kit and the lake.
Osprey UltraLight 12 dry sack sitting in tall grass on a riverbank with the water behind it
We shot it on the bank because that is where a dry sack earns its place. Rolled and clipped, it holds its shape upright even when it is only part full.
Close-up of the roll top buckle and webbing on the Osprey UltraLight 12 dry sack, covered in water droplets
The buckle and the roll are the entire seal. Fold too few turns before clipping and the bag leaks, no matter how well the fabric sheds water.
Close-up of the Osprey UltraLight 12 dry sack lying in grass, water drops scattered across the fabric
Up close the water is still sitting on the surface rather than soaking in. That beading is the easiest field check that the coating is doing its job.
Osprey UltraLight 12 dry sack resting in long grass with the eagle logo and 12L marking facing up
The small webbing loop on the end is the only carry point. It is enough to clip the sack to a pack, not enough to haul it any real distance.

If you want to keep your gear and apparel organized and neat when you are planning a hiking trip, the Osprey Ultralight dry bag will make an excellent liner. Its rectangular shape allows you to efficiently store your gear so you can easily access your equipment whenever you need it.

What stands out here is the durable construction built explicitly from 40D ripstop Nylon that ensures comfort, as well as unmatched durability. Thus, you’ll be able to use the Osprey dry sack for quite some time. When it comes down to water protection, this does the job more than perfect.

It’s definitely a great pick if you are looking for a plain design, great durability, and efficient organization of your equipment.

About this review

To help you find a Dry Bag that will fit your needs, we’ve tested, researched, and reviewed the best ones available today.
We test both in the water, diving in various conditions - and in our lab - so we can give you accurate answers on quality, performance, and the overall value.

Read about our test of Dry Bags

Recommended in: Dry Bag

Things we like:

  • Lightweight build fits well in backpacks
  • Easy to organize by size and color
  • Affordable option for low-risk applications

Things we don't like:

  • Thin materials are more prone to tears
  • Won’t hold up under prolonged exposure to water

Specs & Features

Ideal Activities: Camping, sailing, hiking
Material: 40D Rip-Stop Nylon
Available Sizes: 3-, 6-, 12-, 20-, 35-, 61-liters
Enclosure: Roll Top Closure
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