Fully waterproof rugged dry pack. Mesh pocketed enclosure for maps, keys, etc. Large transparent internal pocket with zip enclosure for added storage. Constructed from high-quality PVC with double welded seams. Loop holes for clipping speaker, water bottle, keys, flash light. 35 Liters of storage. Empty weight: 2.2 lbs. Constructed from 500D PVC ( Same material as life rafts ).