Maximised comfort and warmth for cool-climate treks, Sea to Summit's Comfort Plus Self Inflating Mat is thicker, lighter and features Delta Cores?. Multi-function high flow-rate valve for fast inflation, one-way easy deflation and simple fine tuning for comfort. This joins Sea to Summit's award winning Air Sprung Cell? Mats in offering a more comfortable sleeping experience for outdoor adventurers. Across the spectrum of users: from the ultra-light backpacker trying to shed grams to the car camper who wants luxury and isn?t concerned about the extra weight and packed size, Sea to Summit's expanded range of Sleeping Mats now offers a sleeping solution for everyone.