ULTRA COMFORTABLE: Our sleeping bag offers a great warmth-to-weight ratio, is highly compressible and is extremely durable. DESIGNED FOR EXTREME WEATHERS: This sleeping bag has an extreme temperature minimum of 26 degree Fahrenheit -meaning these are designed to keep the average sleeper warm even at 26F. Ideal for three season SPECIAL DESIGN: Envelop design for more leg space. A left and a right sleeping bag can be zip together to make a double and incorporates comfort sleep system. Waterproof, weather resistant design with adjustable drawstring half circle hood and Velcro to keep you warm even in extreme conditions. Full zip open, can be used as a quilt, double-open zipper can also make your feet often come out through the wind EASY TO CLEAN AND CARRY: Two Straps at the bottom of the sleeping bag makes your cleaning easy and enjoyable. PERFECT FOR OUTDOOR: The sleeping bag offers you extra comfort during adventurous activities but without adding any extra pounds to your backpack.