I purchased this item two years ago for 24,600 yen and used it only once at home. I am selling it now because I haven't gone on any overnight mountain trips since then. ※The ruler is for comparison only and is not included in the sale. This ultralight mat packs down compactly and is suitable for active adventures such as mountaineering, backpacking, thru-hiking, bikepacking, and alpinism. It features recycled 20D ripstop face fabric and is a super lightweight and compact sleeping mat certified carbon neutral by "myclimate." 〈Air Mat Technology〉 Insulated construction developed for fast and light adventures in warm seasons. 〈Exped Cradle Comfort Design with 7cm thick air cushions〉 The air chambers run from head to toe, fully supporting the body for a good night's sleep. It can also be said that it is excellent in durability. 〈Schnozzel Pumpbag (included)〉 A pump bag that allows you to inflate the mat instantly. Since you don't use your breath, the inside won't get damp.