Lightweight, durable and extremely warm, the NeoAir All Season mattress is the ultimate solution to year round backcountry comfort. Patent pending Triangular Core Matrix technology creates over 100 insulating cells and multiple ThermaCapture layers capture radiant heat, resulting in an incredibly high R value without the weight or bulk of conventional insulation. Durable fabrics and construction give the All Season mattress the strength to stand up to rugged conditions throughout the year, and the ultralight 2.3 oz. Mini Pump a 40 value will have you enjoying NeoAir comfort in mere minutes. Stuffsack, NeoAir Mini Pump and repair kit included. Mini Pump batteries 2 AAA not included.