100% Polyester. Fabric: Brushed Back, Knitted, Sherpa Fleece. Design: Logo. Fabric Technology: AT300. Airtrap, Coverstitch Detail, Stretch Binding. Sleeve-Type: Sleeveless. Neckline: Standing Collar. Pockets: 2 Side Pockets, Zip. Fastening: Full Zip. Features Airtrap technology for warmth and comfort. Perfect for layering during outdoor activities. Available in various sizes.