Description Built for action, The ONE 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 features AERO KNIT insulation and underarm knit panels for breathable, temperature-regulating performance. NEVER SETTLEPRODUCT DETAILS:Wind and water-resistantSoft, lightweight comfort and warmthInnovative AERO KNIT insulation for breathable warmthUnderarm knit panels provide temperature regulation and stretchUpdated to include zippered handwarmer pocketsSnap-up convenienceArticulated design for superior mobility and fitFit & Sizing Runs Slightly Small