
Two of the most useful things we sell get confused constantly, because both are bags and both mention water. They are not interchangeable, and buying the wrong one is a mildly annoying way to find out.
The weatherproof storage bag: keeping water OUT of storage
This is a large, heavy-duty carrier sized for a rolled floating water mat. Its job is protection during transport and the long off-season: UV, grit, rain in the truck bed, and the slow abrasion of a mat sliding around a garage floor. It is about the lifespan of an expensive foam mat.
- Sized for a rolled mat, not for personal items
- Carry handles for a two-person lift
- The thing that stops a mat spending winter in the sun

The 30L dry bag: keeping water off your stuff
A roll-top dry bag is a sealed vessel for the things that must not get wet — phone, keys, wallet, a dry shirt, a camera. Roll the top three times, clip it, and it keeps splash and rain out. It is the bag that comes on the boat, in the kayak, and to the campsite.
Which do you need?
- You own a floating water mat and want it to last → weatherproof storage bag.
- You want your phone to survive the day → 30L dry bag.
- Honestly, most people on the water end up with both.
There is also a mat and storage bag bundle if you are starting from scratch. See all Waterproof Bags.