White goose down filling material, comfortable and keep warm. Down is fluffy, sleeping bag is light, but it’s warm. Down is very soft and light. There is a small gap between down and down, which causes the air convection in the sleeping bag to be bad. It can form a layer of insulation layer which is isolated from the outside, so that the outside cold air is not easy to reach the inside, and the inside hot air is not easy to reach the outside, so that the temperature can be maintained. Use zipper of international famous brand. Durable taffeta shell that will stand up to years rigorous use. Use waterproof fabric, light rain is no problem, of course, it is not recommended to get wet when it rains. Innovative Footbox Design-Footbox is vaulted so you have even more roon for your feet. Added insulation in the bottom of the sleeping bag keeps your feet warm. 1 Down Sleeping Bag. Shell Fabric:400T 20D Nylon. Filling material:95% White goose down. Fluffy, Good heat preservation. Goose down has better heat retention than duck down. Size:210cm80cm (Loose place)50cm (Narrow place). Sleeping bag weight 2000g, The weight of filled down is 1550g, Comfort temperature:-20-10 degree centigrade, limiting temperature -30-15 degree centigrade. Sleeping bag weight 2300g, The weight of filled down is 1850g, Comfort temperature:-25-15 degree centigrade, limiting temperature -35-25 degree centigrade. Sleeping bag weight 3200g, The weight of filled down is 2750g, Comfort temperature:-35-25 degree centigrade, limiting temperature -40-30 degree centigrade. The more weight the more warmth. The filling down all using the machine automatically populated. We will try our best to make the filling weight accurate, but there may be a little errors occasionally. It is normal to have a small amount of weight error. If you need larger size, please send me a message. If you need other styles, please send me a message. If you need you need wholesale, we will give you a discount price, please give me a message. We will work hard! To all buyers can be satisfied! About waterproof: dear friends, when you camping, waterproof mainly by tents, this sleeping bag only prevent little water, do not recommend rain drenched sleeping bag directly. Goose down’s warm keeping principle. Down is very soft amd small, Although it looks thin, when you sleep in the sleeping bag, the down will attract your body temperature, so that the down will expand, isolate the cold air from the outside, and achieve the effect of warmth retention. It looks thin when the temperature is low, after attracts your heat, It will thicken when the temperature is high, which is normal. This item is in the category “Sporting Goods\Camping & Hiking\Outdoor Sleeping Gear\Sleeping Bags”. The seller is “first*shoppingmall” and is located in this country: CN. This item can be shipped worldwide.