Port Authority Men's Waterproof Water Resistant Long Sleeve Soft Shell Jacket Polyester & Spandex Zipper closure One of our most popular jackets, the Glacier&#174; is constructed from a polyester stretch woven shell, which is then bonded to polyester microfleece with an added laminate film insert to repel water. The result is a wind-resistant, water-resistant jacket with stretch that's perfect for corporate or weekend wear. 96/4 poly/spandex stretch woven shell 100% polyester microfleece lining 1000MM fabric waterproof rating 1000G/M&#178; fabric breathability rating