Therm-a-Rest NeoAir technology changed what people expect from a backcountry mattress. Warm, comfortable and extremely lightweight, the NeoAir XLite is the next-generation NeoAir mattress that delivers even greater performance than the original. The streamlined shape makes the XLite mattress ultra light and highly packable, while continuing to provide the comfort you need in the backcountry. Stuff sack and repair kit included.