Improving on the best-selling original Tensor line, 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. The pads interior features NEMOs 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 pads overall 5.4 R-value. 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 pads zero-profile, microadjustable Laylow valve for easy inflation in just minutes.