Fishpond Stormshadow submersible sling is a completely complete belt bag. Has a compartment that is 100% waterproof and submersible, the rest is very water resistant and made of a very durable and solid material. Fantastic details and well thought out design. This bag is a 10L compartment. This is one of the best bags we have ever tried. We are very impressed and this is our first choice, for the river, the flat, or the coast. Sits great on your back and keeps your gear dry all day, day in and day out