Combine the latest features in backpack technology with our dry bag know-how and you've got one heck of an All-sport Dry Backpack. The CrossBreed 1500's all-new air flow back panel allows complete air circulation. The open structure and shock absorbing properties of the back panel make for comfort all day long and ensure that not dirt or water gets trapped. The body of the bag is made of tough, waterproof 600 denier urethane coated poly with a waterproof 3-roll closure. Ergonomic shoulder straps and exterior draw cord bungee storage loops finish this pack and makes the CrossBreed the perfect pack, whether your are on a bike, in a boat or on the trail!