20 denier woven baffle construction. 3M? Thinsulate? featherless insulation. Attached hood with elastic binding. Zippered hand pockets. Zippered chest pocket. Elastic bound cuffs. Inside zip stuff sack pocket. Elastic drawcord hem. Angel-wing movement?.Weight 382.7g. Insulation type - 3M recycled Thinsulate featherless, 219.78g. 24.5" center back length. 100% Nylon.