DESIGN & CONSTRUCTION: Two layers of floating Thermal Mirror(TM) metallized film provide quiet insulation with an unprecedented weight-to-warmth ratio Spaceframe(TM) baffles offer unparalleled stability and weight distribution, using low-stretch, die-cut trusses that eliminate springiness bluesign(R) approved premium nylon fabrics shave grams while offering superior puncture- and tear-resistance. Improved zero-profile, multifunctional, microadjustable Laylow(TM) valve offers customized inflation control, even in cold temperatures Impressively quiet for uninterrupted sleep (and happy neighbors) 3.5 inches of stable, cushioned loft for incredibly comfortable nights Included Vortex(TM) pump sack provides easy and fast inflation, saves breath at elevation, and minimizes moisture entering the pad Protected by the NEMO Lifetime Warranty