Left-sided zippers on the men's and right-sided zippers on the women's bags allow two Riffs to zip together for a double bag. Ultralight SpoonT shape adds room at elbows and knees, yet is tailored for weight-shaving warmth. Filled with premium 800 FP hydrophobic, PFAS-free, 100% RDS-certified down. Products certified to the Responsible Down Standard (RDS) contain down or feathers from farms certified to animal welfare requirements.
Waterproof/breathable footbox protects from tent condensation, keeping feet warm and dry. Blanket FoldT external draft collar and a full-length draft tube provide tucked-in comfort and temperature regulation. Thermo GillT vents allow you to release body heat without letting cold drafts in. 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 FilloT.To be stuffed into the sleeve opening for secure, elevated support through the night. Opposite-sided zippers on Riff men's and women's models increase versatility by allowing them to be zipped together into a double sleeping bag.