The NEMO Men's Disco 15 Sleeping Bag is a lightweight down sleeping bag designed for 3-season backpacking. The classic Spoon shape is nice and roomy around the elbows and knees, providing extra wiggle room and comfort for side sleepers, back sleepers, and any other kind of sleeper. The 650-fill down and shell fabric feature a water-repellent treatment for enhanced Performance in wet or humid conditions. Thermo Gills on top give you a quick way to vent excess heat during the night, and the built-in pillow pocket keeps a camp pillow, puffy jacket, or wad of clothing positioned where you want it. Features of the NEMO Men's Disco 15 Sleeping Bag Classic spoon shape for versatile comfort Premium 650FP hydrophobic, PFC-free, 100% RDS certified down is traceable and ensures humane treatment throughout the supply chain Tech Features like Thermo Gills, updated blanket fold, waterproof footbox, and draft tube complete the design Fabric Details Shell: 20D Nylon Ripstop w/ DW Lining: 30D Nylon Ripstop D/W Footbox: 40D Nylon Ripstop OSMO w/ DWR.