The Sea to Summit Lightweight Dry Bag is a classic, versatile storage and organization option for backpacking, hiking, camping, kayaking, ski touring, cycling and travel. Made from bluesign approved, recycled 70D nylon with a non PFC DWR finish (10,000mm hydrostatic head - the higher the waterhead rating, the more waterproof the fabric). Its waterproof seams are double stitched and tape-sealed and the secure Hypalon roll top closure is moisture repellent to keep contents dry. A D-ring at the closure and eyelash loop at the bottom provide easy attachment points and are compatible with the Sea to Summit Dry Bag Sling Strap (sold separately). The oval base of the Sea to Summit Lightweight Dry Bag resists rolling and its flat, streamlined shape saves space. A patent pending field repair buckle can be replaced in seconds with a Phillips screwdriver. Dry bag comes in seven sizes 1.5 litre, 3 liter, 5 liter, 8 liter, 13 liter, 20 liter, and 35 liter to carry everything from small necessities to group gear. Sea to Summit products are guaranteed against defects in materials or workmanship for the entire life of the product.