Improving on their best-selling original Tensor line, Nemo's Tensor™ All-Season offers greater warmth for four-season use without adding any weight. Designed to be a go-to pad all year long, it straddles all seasons and keeps its reputation for low-decibel dozing. PRODUCT FEATURES: The pad’s interior features NEMO’s proprietary Spaceframe™ baffle design, which utilizes low-stretch fabric trusses to create stable support and offer just the right amount of give — all while avoiding any wobbly waterbed feeling. Inside each baffle are two suspended layers of ultra-thin, metallized Thermal Mirror™ film, which efficiently reflect body heat and contribute to the pad’s overall 5.4 R-value. The layers’ clever floating construction eliminates the crinkling, crunchy sound that many insulated air pads are known for, earning Tensor a reputation for peace and quiet on the trail. Armed with premium, durable 20D (top) and 40D (bottom) nylon, Tensor All-Season is better protected against punctures and tears, and — like all NEMO sleeping pads — it includes a Vortex™ pump sack. Vortex effortlessly mates with the pad’s zero-profile, microadjustable Laylow™ valve for easy inflation in just minutes. Two layers of floating Thermal Mirror™ metallized film provide quiet insulation with an unprecedented weight-to-warmth ratio. Impressively quiet for uninterrupted sleep (and happy neighbors). Spaceframe™ baffles offer unparalleled stability and weight distribution, using low-stretch, die-cut trusses that eliminate springiness. 3.5 inches of stable, cushioned loft for incredibly comfortable nights. bluesign® approved premium nylon fabrics shave grams while offering superior puncture- and tear-resistance. Included Vortex™ pump sack provides easy and fast inflation, saves breath at elevation, and minimizes moisture entering the pad. Improved zero-profile, multifunctional, microadjustable Laylow™ valve offers customized inflation control, even in cold temperatures. Regular weight: 1 lb , 0 oz / 440 g Long wide weight: 1 lb , 4 oz / 580 g Regular packed size: 10.0 x 4.0 in dia Long wide packed size: 10.5 x 4.5 in dia Thickness: 3.5 in R-value 5.4