8.5 ounce, 60% cotton/40% polyester canvas with Rain Defender durable water-repellent finish. Work lighter, work smarter, 30% lighter that sandstone but ounce-for-ounce as tough. Nylon lining quilted to 80g 3M Thinsulate insulation. Two-way zipper with inner storm flap. Mock neck collar with zip through. Two large lower front pockets. Two inside pockets. Adjustable hem. Drop tail. Back length Large Regular=28.5 inches, Lare Tall= 30.5 inches.