Sleeves & Hood - Thermo Stretch 51% Polyester 39% Nylon 10% Elastane High stretch brushed back fleece. High collared hood with ergonomic fit. Sleeves & Hood: 51% Polyester, 39% Nylon, 10% Elastane. PERFORMANCE DOWN - HyperDRY 750+ fill power Duck down with PFC-Free DWR greatly improves thermal performance in wetter conditions.