Built for general backpacking use, the Alps self-inflatable pad offers lightweight cushioning at a great price Polyurethane open-cell foam packs light and compact to fit in your day bag or backpack. Self-inflating-simply open valve and roll out pad top off with a few short breaths to increase firmness noncorrosive nylon valve seals tight to prevent leaks. Diamond-ripstop top and polyester taffeta bottom provide lightweight durability. Stuff sack and repair kit included. Special buy.