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