The Exped Versa 5R is a warm and comfortable sleeping mat with synthetic insulation. The sleeping pad is made of 100% sturdy recycled 75D polyester. In addition, the full CO2 emissions of production, including transport, are compensated by the collaboration with MyClimate.The mat consists of vertical tubes. The two outer tubes are slightly higher so that you are stable and do not roll off your mat. Exped uses two flat valves. This way your inner tent cannot be damaged. 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 Versa is equipped with a built-in hand pump. This allows you to inflate the mat quickly and easily. You also prevent moisture from entering the mat. The Exped Schnozzel Pumpbag is available separately, a handy pump bag that allows you to inflate the mat even faster.