The wind-stopping, sweat-wicking Big Jump jacket is crafted from Omni-Wind Block nylon for an ultra-light, breathable barrier between you and harsh, gusting winds. Omni-Wind Block breathable windproof technology stops cold, gusting air. Omni-Wick technology actively breathes and pulls sweat away from skin to keep you dry and comfortable. Attached, adjustable storm hood. Security pocket keeps small items safe. Jersey-lined for comfort. Fabric: [shell] Omni-Wind Block 100% nylon; [lining] Omni-Wick 100% polyester. Imported.