BISINNA Sleeping Bag for Adults Cold Weather Backpacking Sleeping Bags 0 Degree
【3 Weights for 4-Season Comfort】Choose from 2.5kg (warm weather), 3kg (shoulder season), or 3.6kg (cold winter). 【Revolutionary Detachable Sleeping Bag】 Unlike any ordinary sleeping bag where the fill is sewn in, our camping sleeping bag allows you to take out the whole graphene cotton core just like unzipping a duvet cover.