The Nemo Forte(TM) bags are designed for the seventy percent of people sleep on their side. The Forte has been updated with Primaloft's, lightweight, ultra-lofty and supremely resilient RISE insulation featuring 80% post-consumer recycled content. Forte's classic Spoon(TM) shape provides a generous cut at the elbows and knees so side sleepers can shift positions comfortably throughout the night. This 3-season backpacking bags is loaded with features, including Thermo Gills(TM) that help regulate temperature during the night, Blanket Fold(TM) that provides tucked-in comfort, an integrated pillow pocket, and a waterproof/breathable footbox to withstand tent condensation. Left-sided zippers on Men's and right-sided zippers on Women's allow Forte(TM) to zip together for a double version of these favorite synthetic sleeping bags.Forte:Classic Spoon(TM) shape adds room at elbows and knees for versatile comfort. Updated with PrimaloftA(R) RISE insulation, featuring 80% post-consumer recycled content, and engineered to deliver maximum warmth retention and water resistance with less weight than conventional synthetic insulation. A fabric set of 30D Nylon Ripstop and 20D Nylon Taffeta offers an ultra-plush sleep experience. Thermo Gills(TM) allow you to vent body heat without letting cold drafts in. Blanket Fold(TM) external draft collar and a full-length draft tube provide tucked-in comfort and temperature regulation. Full-length double-slider #5 YKK zipper with zipper plow makes getting in and out of the bag a breeze. Integrated pillow pocket allows a jacket, extra clothes, or Fillo(TM) to be stuffed into the sleeve opening for secure, elevated support through the night. Opposite-sided zippers on Forte(TM) Men's and Women's models increase versatility by allowing them to be zipped together into a double sleeping bag.Specs:Minimum Weight2 lb , 14 oz / 1.3 kgPacked Size11.5 x 9.0 in dia / 29 x 23 cm diaTemp Rating20F / -7CISO Lower Limit22F / -6CFill TypeSyntheticFill Weight1 lb , 13 oz / 810 gFits Up To6' / 183 cmShoulder Girth64 in / 163 cmHip Girth59 in / 150 cmKnee Girth62 in / 157 cm