The clear PVC reinforced with nylon mesh materials are combined to create a strong design. Because the bag is see-Through, it is easy to visibly locate any item in the bag without opening it. Using a strong radio frequency, welder (RF) process the PVC and nylon mesh materials are welded together to create a waterproof sealed seam that provides protection from rugged environments. The Dry Stuff Sack is designed with a roll-down top that seals-out moisture. Once rolled-down, simply buckle the top with the squeeze-style side-release buckle and use the latch as a convenient carry handle. Bag measures 22" x 12.5" (55.9cm x 31.8cm) and has 3,437.5 cubic inches (56.33 liters) of volume. Total weight of the bag when empty is 19 oz. (544.3 g). The flexible material offers easy storage and bag come with a removable shoulder strap for convenient transport.