Made with thick PVC tarpaulin material Keeps the dry bag backpack 100% Waterproof. With fusion welded seam makes the dry bag seal out water, sand and dust and perfect for boating, kayaking, paddling, snowboarding, sailing, canoeing surfing and other water sports. The waterproof dry bag provides you with 2 Adjustable backpack straps so that you always have 2 choices of wearing the bag. Splash Proof Zipper Pouch for Quick Access. No need to open up your bag for keys, knives, wallets or any item you want to grab quickly on the go. Provides ultimate protection for your belongings.