The perfect waterproof backpack for your next adventure! Constructed from heavy gauge 500D P.V.C. coated nylon with reinforced seams. All seams are electronically welded which results in stronger and more waterproof construction than sewn-and-taped seams. Roll-top closure is designed to keep contents dry in any wet situation where the bag is not submerged. From swimming, camping, hunting, hiking to canoeing, fishing, surfing, kayaking, climbing you're ready. If you can do it outdoors, you can do it with this pack!