Travel light and sleep comfortably-at just over a pound, our ultracompact pad takes up precious little space in your pack and wont weigh you down. X-Core foam insulation is cross-cored for maximum compressibility and weight reduction. Quick-closing, high-volume airflow valve allows the pad to inflate and deflate quickly. Rugged Taslan nylon diamond-ripstop top surface has a nonslip texture 75-denier polyester bottom surface resists wear. Grippy silicone pattern on upper surface helps keep sleeping bag from sliding off pad. Low-volume, tapered, mummy-shape design increases efficiency and compressibility. R-Value equals 3.2. Stuff sack included protects pad during transport and ensures a compact parcel every time.