8.5 ounce, 60% cotton/40% polyester canvas with Rain Defender durable water-repellent finish. 30% lighter and ounce-for-ounce as durable as sandstone. Nylon lining quilted 80g 3M thinsulate insulation in the bosy and sleeves. Two-way, center front zipper with inner storm flap. Mock-neck collar with zip-through. Two chest pockets with flaps and snap closures. Two large, lower front pockets. Two inside pockets. Left-chest interior pocket. Pleated elbows. Internal rib knit cuffs with ergonomic shaped sleeve hem. Adjustable hem. Drop tail. Pleated bi-swing back. Triple-stitched main seams. Back length: Large Regular=30 inches. Large Tall=32 inches.