KingCamp Down Envelope Sleeping Bag for Backpacking 10.4/-4 Degree F 500 Fill Power Ultra Warm Hooded Lightweight Portable Waterproof Comfort with Compression Sack for Winter Camping Hiking ULTRA LIGHT AND COMFORT: Our sleeping bag offers a great warmth-to-weight ratio, is highly compressible and is extremely durable. Crafted with high quality material (100% Polyester, 50D W/P Cire shell fabric and lining, 14oz.duck down filling with 500 filling Power) for soft, warm, comfort. 1 year limited warranty DESIGNED FOR EXTREME WEATHERS: Male comfort temperature is 35.6 Degree F; female comfort temperature is 44.6 Degree F and the extreme temperature is 10.4 Degree F. Rated for temperature by the European Norm (EN) 13537 testing protocol. Water-resistant design to keep you warm even in extreme conditions and prevent you from dampness LONG LASTING DURABILITY: Ultralight water repellent 50 D ripstop nylon fabric liner with double large YKK zippers and anti-snag slider. All this material is durable enough for long time use MULTIPURPOSE AND DETAILS: Envelop design for more leg space. Design with adjustable drawstring half circle hood and Velcro to keep you warm even in extreme conditions. Two Straps at the bottom of the sleeping bag makes your cleaning easy and enjoyable. Moreover, each sleeping bag comes with a compression sack with straps, which makes it quite convenient to store and carry the sleeping bag along. An inside pocket to save personal items EASY TO COMPRESS: Package size: 13.8 x 6.3 (diameter) inches, 2.4 lbs. as a small package for easy transport and store with compression sack