The AceCamp Terrain Mummy sleeping bag is one of the best mummy sleeping bags out there, it incorporates style and function without the high price tag. Features lightweight 290T embossed soft polyester shell with contoured shape with a hood for maximum warmth. Fleece draft collar and full draft tube minimizes heat loss. 25 oz Thermolite© insulation provides exceptional warmth and comprehensibility. Built in sleeping mat straps, double zipper, cell phone pocket and fleece lined foot area.