Featuring an innovative and ultra-comfortable design, the Klymit Klymaloft Sleeping Pad features a soft foam-layer topper and special air chambers below. Let's start at the top. The plush foam topper, made of stretching 75-denier polyester fabric, conforms to the shape of your body, which adds sleeping support while eliminating any pressure points. Below this, I-beam air chambers stabilize the pad and keep it from rocking or wobbling. These chambers also absorb and hold onto your body heat, which adds some extra warmth to your night's sleep. Inflation is quick and easy. The Klymit Klymaloft camping pad comes with a stuff sack and repair patch. Innovative and ultra-comfortable design Plush foam topper made of stretching 75-denier polyester Conforms to the shape of your body I-beam air chambers stabilize the pad Chambers retain body warmth