Shell: 4.4-oz 100% recycled nylon with a PU coating and a DWR (durable water repellent) finish. Torso lining: 11-oz 100% recycled polyester '-pile fleece. Sleeve lining: 2.2-oz 100% recycled polyester taffeta with a HeiQ Eco Dry PFC-free DWR finish (dur M's Lined Isthmus Hoody - Ink Black