Kelty Clear Creek 20 degree synthetic mummy bag with nylon shell and soft comfortable lining. Good for cool weather camping and short backpacking trips. No tears. Strong, working zipper. Drawstring hood. Right-side zipper mates with women's bag (see my other listing) Nylon shell. Soft lining. Holofill synthetic insulation. Size: men's regular. Weight with stuff sack: ~4 lb.