الوصف

Currently commercially available material into the sleeping bag down and synthetic sleeping bag (usually said to be cotton sleeping bag).
   Down sleeping bags
   Down the material can be divided into white goose down, white duck, gray duck, waterfowl velvet. Per unit weight of the degree of warmth is the most effect, down sleeping bag is warm, easy to squeeze, easy to maintain the status quo, the use of a long, negative factor is the cost of higher prices, will absorb water.
   Synthetic sleeping bags