Based on the Therm a Rest NeoAir Pad, the Trekker mattress brings even more comfort and durability to a proven equation of lightweight and compact sleeping pad design. Therm a Rest's Triangular Core Matrix Technology maintains its promise of twice the warmth of other uninsulated air mattresses along with the unique stability that only Neo technology can offer. If you are looking for the lightest and warmest pad, then check out the NeoAir Pad. If you are looking for a great pad but looking for an economic alternative, the Trekker is the pad for you. Includes stuff sack.