As easy as puff, puff, pack. Because the best vests come in small, sustainable, packable packages. And keep you warm without weight you down. Shell: 100% recycled polyester. Lining: 100% recycled polyester. Recycled, down-like insulation for staying cozy (100 GSM). Lightweight and packs into right pocket. Windproof-bring on the breeze. Zipper pockets for keeping your stuff secure. Made with 100% recycled materials-good for you, good for the Earth. This item is made from 20 upcycled bottles per garment.