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Sea To Summit Hydraulic 35-120L Dry Pack

$239.95 - $269.95

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  • Yellow, 65L
  • Yellow, 90L
  • Yellow, 120L

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Hydraulic Dry Pack

You don't have to sleep in a swampy bag or eat soggy tortillas. Transport your goods in the Sea To Summit Hydraulic Dry Pack to protect them from becoming water-logged and useless. Made from tough, durable PVC-free 600D fabric with waterproof TPU laminate, this dry bag will protect your load when your raft flips, kayak floods, or anything else gets pummeled by water or weather. Pack it up to the brim, too, because the removable carrying harness, including shoulder and sternum straps and a waist-belt (included in 65L, 90L, and 120L), lets you put it on your back with the weight comfortably resting on your hips. The adjustable length of the harness lets you get just the right fit for those long hauls that will make you appreciate those crunchy chips and bone-dry sleeping bag.

  • Heavy duty, waterproof dry pack for multi-day water trips
  • 600D polyester is waterproof and protects against UV rays
  • Fully sealed seams and welded construction keep out leaks
  • Removable Hydraulic harness is a cinch to attach or remove
  • Fully adjustable back and sternum straps customize the fit
  • Padded waist belt supports heavy loads on hips in comfort
  • Non-wicking TPU roll-top closure is secure and waterproof
  • Attachment points reduce snagging when harness is off
  • Item #STS0185

600D textile, TPU laminate
35L (2136cu in), 65L (3967cu in), 90L (5492cu in), 120L (7323cu in)
[35L] 13 x 8 x 28 in, [65L] 15 x 9.8 x 33.5 in, [90L] 16.5 x 12 x 39 in, [120L] 18.5 x 12.6 x 44.5 in
Claimed Weight
[35L] 2 lb 7 oz, [65L] 2 lb 15 oz, [90L] 3 lb 7 oz, [120L] 3 lb 15 oz
Recommended Use
watersports, travel
Manufacturer Warranty

Tech Specs

What do you think about this product?


>Rating: 3

A couple issues

I've used it several times

Overall, decent pack. For a frameless pack, it is fairly comfortable and good at carrying a heavy load, but don't expect it to feel like a backpacking bag of the comparable size. I've had two notable issues with the pack. First, it is not totally waterproof like other dry bags I've used. During a full day canyoneering trip, some water leaked through the opening. It wasn't enough to be a problem, but it was annoying. Yes, I know how to properly close a dry bag. Second, the hooks that attach the hip and shoulder straps to the bag tend to wiggle out of place. I almost lost the hip belt on a short flight, and again while throwing the bag during canyoneering. I like that the straps are easy to remove but they need to be retained better.

>Rating: 5

From the Crag to the Canyon

I've used it once or twice and have initial impressions

This dry bag is great! the backpack system is ingenious. It is very easy to remove and replace. I have the 35L, it is a great size for hauling my ropes, food and electronics especially if you have stuff sacks to keep things separate inside for quicker retrieval. as a side note the 35L does not come with the full size hip strap system, it just has a thin webbing belt, but due to the smaller size of the pack the overall load weight usually is not an issue.

>Rating: 4

Suspension Could be Better

I've used it several times

Excellent bag for keeping gear dry but the suspension is a little weak for hauling a full load comfortably but good for a day pack.

>Rating: 5

Waterproof all the way

I gave it as a gift but have feedback to share

Lives up to the promise, great waterproof, that is all that matters to me

>Rating: 5

Big and Burly

I've used it several times

The Sea To Summit Hydraulic absolutely swallows your river gear and then some! This thing is massive and burly, but gives you a great way to transport your heavy load with the well designed backpack strap system.

>Rating: 5

Awesome pac

Waterproof and comfortable to carry

>Rating: 5

Great Bag

The fit is great and is completely waterproof.

>Rating: 5

Waterproof Pack

Our website doesn't have a photo of the front so I've added a video and photo from Sea to Summits website so you don't have to search for it!

>Rating: 5

Waterproof Pack

Our website doesn't have a photo of the front so I've added a video and photo from Sea to Summits website so you don't have to search for it!


Is this pack hydration bladder capable?