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  • Hydraulic dry bags are designed for heavy use and feature very tough, laminated fabric and welded seams; they also have a high resistance to UV light and cold temperatures
  • Harness promotes cooling airflow with EVA foam and quick-drying mesh, and it features adjustable back length and height adjustable sternum straps
  • Removable harness attches via a series of very tough, anodized aluminum buckles, and low-profile attachment points reduce snagging when harness is removed
  • Thermoplastic urethane (TPU) roll-top closure seals easily and provides reliable waterproof performance
  • Oval base resists rolling and stays where you put it
  • Durable attachment points secure dry bag to a pack or kayak
  • The 120L Sea to Summit Hydraulic dry bag is PVC free
  • Not intended for prolonged submersion


View all Sea to Summit Dry Backpacks

REI membership


Best Use Paddling
Gear Capacity (L) 120 liters
Gear Capacity (cu. in.) 7,323 cubic inches
Shoulder Straps Yes
Waterproof Yes
Dry Bag Shape Cylindrical
Material(s) Polyester w/ double-sided TPU laminate
Dimensions 44.5 x 18.5 x 12.6 inches
Weight 3 lbs. 15 oz.
Rated 4 out of 5 by from does its job: dry stuff, reasonable back pack purchased in advance of a Quetico trip. Pleased to say we never dunked it, but held up to the pouring rain. I found that ring-top closure took up a lot of room in the canoe. So I took some webbing that I had, removed the waist belt buckles, which match the top, and strapped the roll top "ears" down the sides, rather than to each other. It worked well and I'd like to suggest REI or S-to-S provide an extra set of buckles for this configuration. I had a minor problem with one of the shoulder straps. The little cinch did not hold. I'd snug it up and five strides later the right shoulder was drooping again. Another accessory I'd like is a little stash outside the main pack. It doesn't have to be immersion proof. A stash for rain-suit, candy bar and water bottle. It is impossible to open this thing up -- safely -- in a canoe, and you need this stuff sometimes.
Date published: 2014-09-17
Rated 1 out of 5 by from Durability issue I bought this for a May 2015 canoe/trout fishing trip in the Algonquin Park interior. I love the idea of this bag and was very impressed with it at first. After a second canoe trip in July I noticed the material had worn out near the bottom of the bag and actually had caused a small hole. This bag was only placed in a canoe and taken out for a few portages. I would consider its use to be fairly light and was shocked to see a hole in it. I bought this because it was supposed to be "designed for heavy use and feature tough, laminated fabric". I did not put it through "heavy use" and for 200.00 I am extremely disappointed with the quality. The main reason I got this bag was to avoid having several small dry bags inside a backpack but that is what I will be doing when I return this one.
Date published: 2015-08-13
Rated 4 out of 5 by from Worth every penny! This was the best investment to protect my camping gear while going out hunting I'm the spring time. It will hold all your essential camping gear safe from the elements. I had used this bag before, that was my works bag, floating the Kisaralik and it performed top notch. Kept my gear dry and has enough handles to lug around, and it has straps so you carry it like a backpack.
Date published: 2013-05-30
Rated 5 out of 5 by from Used it on 3 day Canoe Trip Fit 3 days of gear, small tent, sleeping bag, small pillow, clothes, extra shoes, plenty of room to spare. Liked that it clipped securely to the canoe, if only the other person in my canoe had the same bag. He had a bunch of loose gear that would have gone floating away or sank had we tipped.
Date published: 2013-08-01
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