Sea to Summit Air Seat Insulated is a lightweight and compact inflatable cushion to be used to sit comfortably during trekking, hiking and camping! It is made of 30D polyester and TPU which gives it great strength, as well as guaranteeing good comfort. Thanks to the anti-slip coating even during sleep you will not slip from the mattress. It is 5 centimeters thick and uses the same technology and materials used in the Sea to Summit mattresses! This is why it guarantees you: comfort, isolation from the ground, lightness and portability! To facilitate inflation and deflation there is the multifunction valve which, being one-way, allows the air to enter easily without letting it out and at the same time gives you the possibility to deflate the mattress in an instant, simply by pressing it. Stored in its small bag, it can be easily inserted into a backpack pocket, allowing you to take it out in times of need, when perhaps the ground is damp or uncomfortable. Sea to Summit Air Seat Insulated inflatable pillow