NewDoar Ultralight Goose Down Sleeping Bag Comfortable and Durable SHELL :100% Nylon lining :100% Nylon filling:95% goose down 5% feather (if you see A few black feathers, this is normal feather) HNAD WASH COLD WATER DO NOT BLEACH DO NOT DRY CLEAN DRY FLAT Keeping You Comfortable in the Outdoors Temperature Rating 1. Choose either +5℃(41℉) to +11 ℃(52℉) 2.Extreme :-15℃/(5℉) 3.This a great sleeping bag for warmer weather bikepackers and backpackers. if you are using this bag at 35 or below, it absolutely requires a fleece/thermal liner. Read more 95% White Goose Down 800 Filling Can be used in 3-4 seasons, keep you warm all night! Water Resistant Coating Waterproof material makes you feel more at ease when the weather turns bad. Neckline Drawstring Design Effectively prevent the cold air from entering the sleeping bag, protect the body from air leakage. Sturdy Velcro Velcro is very sticky, feels smooth and soft without irritating the skin. Read more Read more