Austfjell Sleeping Mat Air LW is an inflatable sleeping pad with transverse air ducts from Sydvang. The top design as well as the stretchy material contributes to a still and quiet sleep. The underside is made of a durable polyester fabric. The slepping pad is inflated by a valve manually or with a pump bag.\n\nTop: 190T Stretch PolyesterBottom: 190T PolyesterValve in Diameter: 19 mm Sydvang Austfjell Sleeping Mat Air LW Twilight Blue | Buy Sydvang Austfjell Sleeping Mat Air LW Twilight Blue here | Outnorth