This roomy Team 31 vest has Therma-FIT technology to help keep you warm in chilly weather. The durable ripstop outer fabric is water-repellent to help shed rain, while the synthetic insulation adds warmth. Taffeta lining feels silky smooth and makes for easy layering, so you can pop it on over your favorite jersey or hoodie. Benefits:Nike Therma-FIT technology helps manage your body's natural heat to help keep you warm in cold-weather conditions. Front patch pockets give you an easy place to store small items and warm your hands. Full-zip design. Product Details:Elastic hem. Body/Lining/Fill: 100% polyester. Machine wash.