The North Face Dolomite Double 20/-7 Sleeping Bag Temp Rating: 20 F/-7 C Heatseeker Eco synthetic insulation composed of 30% post-consumer recycled material Wraparound footbox zipper so the bag can lie flat Tapered sport rectangle fit Weight: 8 lbs 14 oz (4039 g) [Regular]; 9 lbs 14 oz (4472 g) [Long]