Trusted Comfort, Recycled Materials. Based on our bestselling Cloud Sleeping Bag, but now in a lower cost fully recycled synthetic package, the Night Cap Sleeping Bag features a zipper-less design with an integrated comforter for all the comforts of home in the backcountry. The Night Cap also incorporates our patented self-sealing foot vent and a pad sleeve, allowing increased ventilation for hot sleepers and movability for wiggle worms, side, and stomach sleepers. Features: Patent pending zipperless design for the ultimate comfort Oversized integrated comforter gives you all the comforts of your bed at home Insulated shoulder pockets keep comforter wrapped around you and seals out drafts Patented self-sealing foot vent provides fast and easy ventilation Integrated sleeping pad sleeve keeps pad under you for comfort and warmth Hood cinch to keep in heat when the temps drop Recycled materials reduce environmental impact ISO tested Stuff sack included for easy pack up and transport Materials: Liner: 20D Recycled Polyester Shell: 20D Recycled Polyester Insulation: SierraLoft Eco Synthetic Technical Specifications: Regular Temperature Rating: 35°F / 1.67°C ISO Comfort Rating: 39°F / 2.22°C ISO Limit Rating: 29°F / -1.67°C Weight: 2 lb 3.7 oz / 1.011 kg Fill Weight: 24 oz / 680.39 g Fits To: 72" / 182.88 cm Length: 78" / 198.12 cm Shoulder Circumference: 60" / 147.32 cm Hip Circumference: 58" / 147.32 cm Foot Circumference: 40" / 101.6 cm Stuff Sack Size: 7.5 x 15 in / 19 x 38 cm Source: Imported Sierra Designs Night Cap 35 Degree Sleeping Bag - Regular