SealLine Black Canyon Boundary Dry Pack

Moosejaw says:
The SealLine Black Canyon Boundary Portage Pack is a waterproof pack for carrying gear through portages. Sometimes there is a little land between the water you're on and the water you want to be at. Throw your gear in this waterproof, roll-top and prevent any water from getting in, then throw it on your back when it's time to pick up your kayak or canoe and walk the earth a little bit. A cushy shoulder harness with a webbing belt makes life off the water easier. Features of the SealLine Black Canyon Boundary Portage Pack Ideal for carrying large loads over short distances while saving space and weight Waterproof and ventilated shoulder straps, as well as a waist belt on every size Roll-down Dry Seal closure for the best watertight protection Eco-friendlier fabrics reduce environmental impact