Product Overview 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 approximately twice the tear strength of conventional nylon of the same weight. 650 Fill Power Down This is high-quality down that is characterized by its excellent heat retention and cost-effectiveness. Reversible Design A reversible design allows you to enjoy two colors and designs to match your outfit. Anti-Static Treatment to Reduce Unpleasant Static Electricity Anti-static treatment is applied to reduce static electricity. The effect does not diminish even after repeated washing and lasts semi-permanently. ● Material: 20-denier Ballistic Nylon Taffeta [Durable Water-Repellent Finish, Anti-Static Treatment] Insulation: 650 Fill Power Down ● Average Weight: 114g ● Size: M 24-26 ● Compressed Size: 9 x 9 x 16.6cm ● Features: Includes stuff sack ● Color: Cherry Red