【WATERPROOF & DURABLE MATERIAL】Built - 12 cm thick, made of highly elastic PU foam sponge, sturdy, Comfortable polyester PU fabric of 80D polyester pongee material, durable, comfortable and lightweight, offering you a simple and comfortable sleeping for camping. 【EASY TO INFLATE AND DEFLATE】Advanced inflation technology features 2 flat valves: 1 for inflation and 1 for deflation, making it quicker to inflate (only 8-12breaths) or deflate. Say goodbye to your old sleeping pad that required either a pump or lots of breaths and effort to inflate. 【ERGONOMIC DESIGN】The Inflatable Sleeping Mat is specifically designed for natural ergonomic.Whether using on your tent/sleeping bag/hammock,or floor/rocky/lawn/sand/beach.You can shield from feeling discomfort from rocky terrain or bumps underneath.