US Outdoor Store says:
With improved features including lighter nylon ripstop fabric and higher loft down insulation than Nemo's other bags, the Nemo Riff(TM) is your premium sleeping bag option.NEMO says: "With a unique Spoon(TM) shape adding room at the elbows and knees, the Riff(TM) is a three-season men's down backpacking bag that is designed for side sleepers, and allows you to shift positions throughout the night. This popular bag is loaded with features, including Thermo Gills(TM) that help regulate temperature during the night, Blanket Fold(TM) that provides tucked-in comfort, and a waterproof / breathable footbox to withstand tent condensation."
Current Retail: $399.95
Historic Range: $299.99-$419.95