"Take your best sleep anywhere with the Sea to Summit Pursuit Rectangular Self-Inflating Sleeping Mat. This Sea to Summit air mattress is incredibly lightweight and compact, yet it boasts Horizontal Delta Coring that creates foam-supported air channels to exceptional nighttime comfort. The XPEL multi-function valve makes it easy to inflate, adjust, and deflate, while a side-loading stuff sack means packing up is a breeze. Featuring an R-Value of 3.0, this sleeping mat offers 3-season comfort. Made from RCS-recycled and blue sign-approved 20-denier polyester and polyurethane foam. Imported. Lightweight, compact sleeping mat Horizontal Delta Coring adds foam support XPEL multi-function valve Side-loading stuff sack R-Value of 3.0Specs: Regular: 72""L x 25.2""W x 2""H. Weight: 1.71 lbs Large: 78""L x 29.9""W x 2""H. Weight: 2.31 lbs."