Built for action, The ONE(TM) Shirt-Jac is better than ever! We added zippered handwarmer pockets to our wind and water-resistant shirt jacket for more security on the move. The ONE(TM) features AERO(TM) KNIT insulation and underarm knit panels for breathable, temperature-regulating performance. NEVER SETTLE(TM) Fabric 100% Nylon | 68 GSM AeroKnit(TM) | 100% Polyester | 110 GSM Tufflex(TM) | 88% Nylon, 12% Spandex | 180 GSM Approximate Garment Weight: 380 G | 13.4 oz. Insulation 100% Polyester | 110 GSM Features Mechanical stretch across the entire body Water resistant body fabric with light breathability Internal 110 GSM active fleece insulation Casual snap-up shirt-jac Knit underarm gussets for temperature regulation Zippered hand warmer pockets