Amazon.com: Skog Å Kust BackSåk Pro Waterproof Floating 。Skog Å Kust BackSåk Waterproof Floating Backpack with Outer Zippered Pocket-35 liter capacity. Colorful multicolor Tie-dye pattern. Nylon lining. Measurements when closed at top: 19\" height, 6\" depth; 12.5\" wide. EXCELLENT pre owned condition. Never used in water. Used to store potpurri, holiday decor. A hairline slightly lined crease edge at one side. 1\" faint gray mark on one strap on nylon part. See all pics. - Rugged All-Weather Protection: BackSak is made from heavy duty 500-denier PVC to seal out the elements with watertight, welded seams and a roll-down top. Keeps your gear protected & dry in a variety of outdoor sports and activities. - Comfort & Convenience: padded back support help relieve pressure on muscles. Thick, cushioned straps adjust for custom comfort. Handy D-rings at sides hold water bottles & other gear. - 2 Easy Ways To Close: Simply fold the roll-down the top at least 3 times, then click the top clip to create an instant handle. OR use the side clips & adjust for a snug, compressed fit its main compartment is IPX-6 waterproof either way! - Zippered, Protective Pockets: Spacious interior pocket keeps electronics & other valuables separate from wet towels & swimsuits. Splash-proof outer pocket safely holds keys, IDs, more.