It"s like a Down Sweater, only warmer: The Hi-Loft is built with a lightweight 100% polyester ripstop shell and packed with toasty, highly compressible 800-fill-power goose down; ideal as a midlayer or stand-alone layer. Lightweight polyester shell fabric is treated with a Deluge® DWR finish; bigger channels with more 800-fill-power premium goose down than the regular down sweater. Two zippered handwarmer pockets and one internal zip pocket for storage. Drawcord hem seals out cold and spindrift. Stuffsack included. Shell and lining: 1.4-oz 20-denier 100% polyester (shell is recycled) ripstop with a Deluge® DWR (durable water repellent) finish. Insulation: 800-fill-power premium European goose down. 335 g (11.8 oz) Made in Bangladesh.