8.5 ounce, 59% cotton/39% polyester/2% spandex Quick Duck with Rain Defender durable water repellent. 30% lighter but ounce foe ounce as durable as sandstone duck. Rugged Flex durable stretch technology for ease of movement. Left-chest map pocket. Two lower front pockets with zipper closure. Mock neck collar. Drop tail. Adjustable drawcord at bottom hem. Back length; Large Regular=27.5 inches, Large Tall= 29.5 inches.