The Nemo Women's Forte 35-Degree Synthetic Sleeping Bag has Primaloft's, lightweight, ultra-lofty & supremely resilient Rise insulation. Forte's classic Spoon shape provides a generous cut at the elbows & knees so side sleepers can shift positions comfortably throughout the night. Classic Spoon shape adds room at elbows & knees for versatile comfort Maximum warmth retention & water resistance Deluxe fabrics offer an ultra-plush sleep experience Thermo Gills allow you to vent body heat without letting cold drafts in Blanket Fold external draft collar provide tucked-in comfort & temperature regulation Full-length double-slider YKK zipper w/ zipper plow makes getting in & out of bag a breeze Integrated pillow pocket allows a jacket, extra clothes, or Fillo to be stuffed into sleeve Opposite-sided zippers increase versatility Manufacturer lifetime warranty against defects