Therm-a-Rest Hyperion 20 UL Sleeping Bag

The Therm-a-Rest Hyperion 20 UL Sleeping Bag is an ultralight mummy bag designed for backpacking and mountaineering. Compressible down Insulation and a tapered mummy shape team up to keep weight and packed size to a minimum. The High-quality 900-fill goose down Features hydrophobic Nikwax; treatment for improved Performance in wet or humid environments. Removable sleeping pad straps allow you to integrate your sleep system to boost comfort and thermal efficiency. Boasting a 20°F temperature rating and weighing in at only 20oz for the regular size, this sleeping bag will keep you toasty warm through most 3-season applications without weighing you down. Features of the Therm-a-Rest Hyperion 20 UL Sleeping Bag Ultralight design and construction gives the regular size a weight of 20 ounces 900 fill Nikwax Hydrophobic Down™ stays dry and retains loft up to 60 times longer than untreated down Down also absorbs 90% less water and dries three times faster without using dangerous PFCs Lightweight materials and precise design allow for a smaller packed size than ever before for incredible packability Box baffled construction Uses mesh walls to maximize loft and minimize cold spots SynergyLink™ connectors integrate the bag with a mattress for optimal efficiency and comfort, and Are also removable for versatility ThermaCapture™ lining to trap radiant body heat and retain warmth without adding bulk or weight Zoned Insulation maximizes warmth and saves weight by intentionally placing fill where you need it most Also Features a heat-trapping draft collar, zipper draft tube, snag-free zipper, and cinchable hood Offers an extreme temperature rating of 20°F / -6°C A compression sack and storage sack Are included Fabric Details Shell: 10D Nylon RipStop with DWR Lining: 10D Nylon RipStop ThermaCapture™ Fill: 900 Fill Goose Nikwax Hydrophobic Down™