LIGHTWEIGHT, BREATHABLE WARMTH. Chilly runs mean extra layers for your daily miles. The Nike Therma-FIT ADV Vest gives you lightweight coverage with an advanced heat-regulating design that'll keep you going through cool weather. When you need to layer down, the vest packs into itself for easy carrying. Advanced Warmth Nike Therma-FIT ADV technology combines heat-regulating fabric with advanced engineering and features to help keep you warm in cold-weather conditions. The front and back panels use down feathers for extra warmth. A durable, water-repellent finish helps prevent the feathers from clumping together. Store Your Essentials Zippered pockets help secure your small items. When you need to layer down, the vest can be packed into the left pocket. More Benefits Warm knit fabric is placed at the shoulders and front pockets. A thin neck collar feels smooth against your skin. Product Details Standard fit for a relaxed, easy feel Body/lining: 100% polyester. Panels: 83% polyester/ 17% spandex. Fill: 90% goose down/10% goose feathers. Machine wash Imported Shown: Light Menta