Description of The North Face Blue Ridge BX 20º Sleeping Bag A classic three-season mummy bag for the littlest campers, this kids’ mummy bag is a campground favorite in conditions dipping as low as 20ºF. Designed with the same durable, technical features as its adult counterparts, this synthetic bag is made from a silky taffeta shell and liner that’s extremely soft against skin. Kid-friendly zippers are easy for little ones to use, and full-length draft tube retains body heat from escaping through the zipper’s teeth. Features: Avg Total Weight: 2 lbs 8 oz (1120 g) External Length: 68" (173 cm) Fabric: 100% polyester Enduralite Fill Weight: 1 lb 8 oz (670 g) Foot Circ: 36" (91 cm) Hip Circ: 51" (129 cm) Max User Height: 5'0" (152 cm) Shoulder Circ: 52" (132 cm) Stuffsack Size: 8" x 17" (20 cm x 43 cm) Temp Rating: 20°F/-7°C Heatshield Optimal Technology™ (H.O.T. SL) synthetic insulation uses hollowcore poly fibers Silky polyester taffeta shell and liner fabric Full-length draft tube Easy-grab zipper pulls Shoulder-level zippered pocket Overlapping shingle construction Kid-sized, three-season, 20ºF campground favorite