The Exped Ultra 1R Mummy is an ultra lightweight sleeping mat. Due to its mummy shape, this sleeping mat is even lighter and more compact than its rectangular sibling. The sleeping mat is perfect for human-powered adventures such as trekking, long-distance hiking, bikepacking and alpinism, in warmer temperatures. When every ounce counts, Exped Ultra series sleeping mats ensure super-compact and ultralight sleep comfort anywhere.The Ultra 1R has Airmat Technology, meaning it is air-insulated for lightweight use in warmer temperatures. Ultra is not only light, but supportive too: the 7 cm thick air cushion features Exped cradle comfort design: air chambers run head to toe, fully supporting the body for an unrivaled night's sleep and giving maximum durability. The two outer tubes are slightly higher to keep you centered on the mat. They also reduce the risk of rolling off your mat. The Exped Ultra 1R mat is made from recycled 20D ripstop polyester. The full CO2 emissions of production, including transport, are compensated by Exped's collaboration with MyClimate. Exped uses two flat valves, preventing damage to the fabric of the inner tent. One valve is for inflating and the other for deflating the mat. The inflation valve is equipped with a handy one-way flapper. This way the air cannot escape during inflation. The mat comes with an Exped Schnozzel Pumpbag. With this lightweight pump bag you can inflate the mat at lightning speed. Since you use ambient air for inflation, no moisture gets into the mat. The pump bag can also be used as a waterproof storage case.