The Sea to Summit Sling Lightweight Dry Bag is an all-purpose, roll-top dry sack with a removable, adjustable 1-inch shoulder strap for hands-free carrying when paddle boarding, hiking, or traveling. Strap is adjustable from 18 inches to 36 inches, for carry over the shoulder or crossbody. Manufactured from lightweight PU-coated 70D nylon, with a 10,000mm waterhead (the higher the waterhead rating, the more waterproof the fabric), its waterproof seams are tape sealed. The secure hypalon roll-top closure features a D-ring for easy attachment of the shoulder strap, or to secure the bag to other gear. The Sea to Summit Sling Lightweight Dry Bag has a white inner coating for better visibility of contents. A patent-pending field repair buckle can be replaced in seconds with a Phillips screwdriver. Available in two sizes: 10 liter (open dimensions: 18.5 x 7.5 x 4.9 inches inches, weight: 3.2 ounces) and 20 liter (open dimensions: 24 x 10.6 x 6.7 inches, weight: 4.2 ounces), to carry day trip essentials. Sea to Summit products are guaranteed against defects in materials or workmanship for the lifetime of the product.