AstroTM series pads are built to bring maximum comfort to adventures like backpacking, where weight and packed size are critical. These pads have a generous 2.5" thickness, durable polyester fabric and a raised portion at the head end to supplement your pillow. The baffles in the AstroTM series run across the pad, perpendicular to your arms and legs, making their contours barely noticeable. Inflation is done with your lungs or with the clever DiscoTM Pad Pump, sold separately. AstroTM pads include a stuff sack, compression strap, and repair patches. Check out the PIllowtopTM accessory to convert your AstroTM into a luxurious camping pad.