It's very light and warm. There is some pilling on the inside of both armpits (see photos). Length: 68 cm Width: 42 cm Please allow for some margin of error. Will be compressed for shipping. 800 Fill Power EX Down High-quality down that achieves a high level of both "warmth" and "lightness." Compared to general 500 fill power down, it provides stable heat retention even with a smaller amount of down. It has a unique quilting pattern that prevents cold spots and keeps you warm. It prevents the down from shifting, increasing heat retention efficiency, and also contributes to lightness and compactness. Material: [Ballistic Nylon] Montbell's original Ballistic Nylon is a shell material that combines strength and lightness. This fiber is made by stretching nylon yarn during the spinning process to give it strength, and when woven, it achieves about twice the tear strength of conventional nylon of the same weight. [Anti-Static Processing] to reduce unpleasant static electricity It has been treated with anti-static processing to reduce static electricity. The effect does not diminish even after repeated washing and lasts semi-permanently. ● Comes with a stuff sack: Compactly stores and is convenient for carrying. ● Inner cuffs: A two-sleeve structure that prevents cold air from entering from the cuffs. The inner sleeves use fleece fabric with excellent heat retention and stretchability. Although feather leakage prevention processing is thoroughly applied, the individual fibers are thin and the fabric is also thin, so some feathers may come out from the sewing lines due to stretching during wear.