Offering performance at an unbelievable weight and packed size, the inflatable Therm-a-Rest NeoAir UberLite is one of the lightest sleeping pads around, but it still offers 2.5 of cushioning and an R-value of 2.3. Unlike traditional pads, the NeoAir UberLite utilizes vertical baffles. The increased number of baffles couples with Therm-a-Rest's Triangular Core Matrix to minimize convective cooling, increase stability, and eliminate the 'inflatable raft' feeling caused by overinflated vertical baffles. This design keeps weight (the Regular length is just 8.8 ounces) and packed size to a minimum while delivering better warmth than standard uninsulated pads. The inflatable construction provides a 2.5' thick base of cushioned support. The pad s high-tenacity, ultralightweight fabric has an excellent strength-to-weight ratio. The pad can be quickly and easily inflated with the use of an included pump sack and the one-way WingLock valve. This saves you the work of inflating by mouth and keeps potentially damaging moisture from entering the pad. The Therm-a-Rest NeoAir UberLite sleeping pad is available in Small (20 x 47), Regular (20 x 72), and Large (25 x 77) sizes. A pump sack, stuff sack, and field repair kit are all included.