Waterproof Dry Bag
The Hydrus 20L Dry Backpack is built for paddlers who want their gear bone-dry and their shoulders happy. Airtight roll-top closure with welded seams keeps water out from light splashes through full submersion. External water-resistant zipper pocket holds phone, keys, and small items for quick access.
The carry system is what separates this from a basic dry bag. Padded shoulder straps with ventilated back panel and adjustable chest plus waist belts. It feels like a hiking pack, not a duffel. Hike to the launch, paddle the day, hike back, no shoulder fatigue.
Airtight design traps air inside, so the bag floats if it goes overboard. Sized to fit under the bungees on any Hydrus iSUP, secure and out of the way. 20-liter capacity expands for overpacking days: shoes, clothes, lunch, camera, layers. Right-sized for day trips, light enough for travel.
Why This One
- 20-liter waterproof roll-top with welded seams. Survives full submersion
- External water-resistant zipper pocket for phone, keys, and small items
- Padded shoulder straps plus chest and waist belts (real hiking-pack fit)
- Floats if dropped overboard. Airtight construction traps air
- Bungee-mounts under any Hydrus iSUP deck rigging
Specs
- Capacity
- 20 liters
- Closure
- Roll-top waterproof
- Use
- Day trips, river runs, travel
Works With Every Hydrus Board
Fits all current Hydrus models.
Perfect For (And Not For)
- Day trips where gear needs to stay dry through splashes or wipeouts
- River runs, raft trips, or kayak paddles with rough conditions
- Travel paddlers who want one bag for water and trail
- Need a full board-sized transport bag → Mothership Paddleboard Backpack
- Just want a beach blanket to keep your gear off the sand → Sand-Free Blanket
Everything You Need to Know.
In 3 Minutes.
Who this one is for. Who it is not for. What makes it different. No script. No hype. Just the founder talking straight.
Verified Reviews
You Might Also Like
Paddlers who grab this also grab these.
Still Have Questions?
We are real paddlers. Text or DM us before you buy. We'd rather you get the right gear than make a sale.
Text Us a Question






