Sierra Designs Nitro 800F 20 Degrees Sleeping Bag Red/Yellow/Black Regular. The Nitro 20 sleeping bag is designed with durable nylon ripstop and insulated with 800-fill hydrophobic DriDown to keep you toasty warm even on damp nights. A draft collar seals in the heat when moving around and sidewall baffles prevent the down from shifting and causing cold spots but our patented self-sealing foot vent provides relief to hot sleepers without the need to kick off the covers. Top it off with an anti-snag zipper to eliminate sleepy struggles and take greater comfort with this intuitive mummy bag. Specifications for Sierra Designs Nitro 800F 20 Degrees Sleeping Bag: Manufacturer: Sierra Designs Color: Red/Yellow/Black Temperature Rating: 20 Fahrenheit Bag Shape: Mummy Zipper Type: No Zipper Lining Material: 15d Nylon Ripstop Insulation: 800FP PFC-Free Dridown Insulation Weight: 16 Gender: Unisex Shoulder Girth: 62in Foot Girth: 40in Hip Girth: 56in EN Lower Limit Rating: 17F EN Comfort Rating: 28F Packed Size: 15x7.5 in Age Group: Adults Application: Camping Fabric/Material: 15D Nylon Ripstop Length: 78 in Features of Sierra Designs Nitro 800F 20 Degrees Sleeping Bag PFC-Free 800FP Dridown and 15d nylon fabrics ultralight weight Patented Self Sealing foot vent fast and easy ventilation Draft-dodger collar helps prevent drafts 5" baffle spacing and side wall baffles helps to keep down from shifting keeping you warmer Anti-snag zipper tracks makes getting in and out easy Package Contents: Sierra Designs Nitro 800F 20 Degrees Sleeping Bag Sierra Designs 70604324R: Nitro 800F 20 Degrees Sleeping Bag Red/Yellow/Black Regular