Blast22 Rolltop PackA new addition to the WaterTech Gear line of bags. Designed with a more urban setting in mind, this pack is a softer, more supple material than the PVC Tarpaulin construction of our other bags. All seams are welded and, if the bag is closed properly, the main compartment is waterproof. The zippered pocket is water resistant. At 22 liters, this is a great commuter bag, small day pack, or smaller dry bag for shorter paddles.