Hotcore Fatboy 400 Sleeping BagThe Fatboy 400 is huge! It has all the extra room you need for 4 season camping. And compared to other sleeping bags of the same size and temperature rating, this Fatboy is still the leader in compact lightweight. Insulated banana hood for added comfort and warmth Suresoft brushed polyester lining is warm and comfortable Drawcord at shoulder use it to trap heat in and keep the cold out Oversize 2 way nylon coil zipper allows for venting at foot; hi