Nike Sportswear Men's Therma-FIT Vest Roomy and warm, this vest is made with heat-regulating technology to help keep your body temp in an optimal range. The durable ripstop outer fabric is water-repellent to help shed rain, while synthetic insulation adds warmth. Taffeta lining feels silky smooth and makes for easy layering so you can pop it on over your favorite hoodie, flannel or thermal. Nike Therma-FIT technology helps manage your body s natural heat to help keep you warm in cold-weather conditions. Front pockets give you easy place to store small items and warm your hands. Elastic hem helps keep it close to your body and seal in heat. Full-zip design with stand collar lets you change up your style and coverage. More Details Body: 100% nylon. Lining/Fill: 100% polyester. Machine wash Imported 100% NYLON