Take your gear on a solo jaunt worry-free. The Animas Backpack not only stores gear, it protects your stuff from Rain, Spray, and the Unintentional Swim. Keep your Gear Dry even when submerged! Easy-to-Use Zip Dry Seal presses shut like a freezer bag. It locks shut, keeping out moisture with an airtight, waterproof seal, even when submerged and under pressure. The Zip Dry Seal is Depth Rated to 300" (90 meters) The Animas Backpack is made from Durable 840-Denier Nylon Fabric with a heavy matte Polyurethane (PU) Finish for Abrasion Resistance and overall Strength. Clear Version of the Backpack is made from Abrasion Resistant 20-ml Polyurethane. All seams are Radio Frequency (RF) Welded and Guaranteed to be Free of Leaks. Backpack has Padded, Adjustable and Removable Shoulder Straps that are strategically placed to prevent slippage, Adjustable Sternum Strap, Adjustable Waist Strap and a Top Grab Handle. Waist straps help distribute your load for a more comfortable ride. The Animas Dry Backpack measures (L x H x W) 15" x 26" x 8" (38.1 x 66 x 20.3 cm) with a volume of 3,300 cubic inches (54 liters) and weighs 2.8 lbs (1.1 kg) when empty. Backpack has a 16" (40.6 cm) Opening for easy access to packs content. Backpack is available in 6 color choices of Black, Blue, Red, Yellow, Clear or Alpha Green and is covered by a limited lifetime warranty.