4.5 ounce, 100% nylon Carstrong shell fabric, as strong as sandstone duck thanks to Carstrong fabric. Rain Defender durable water repellent finish. Fast Dry with 37.5 Technology mesh lining dries fast to keep your body at its ideal temperature. Fights odors. 15 pockets including 2 secured zippered chest pockets. Specially designed back vent for additional breathability. Back length, Large Regular=26.25 inches, Large Tall=28.25 inches.