If you're debating whether it's too chilly or breezy to go for a run, take that first step out the door in the Nike Therma-FIT Swift vest. With heat-regulating tech, you won't be fighting the cold alone. Plus, the loose fit makes for easy layering, so before, during and after your run, you're set to take on cold-weather conditions.Details:Nike Therma-FIT technology helps manage your body’s natural heat to help keep you warm in cold-weather conditions. Bungees at waist let you customize your fit. Drop-tail design provides more coverage and warmth on back. Zippered side pockets help keep your essentials secure.Reflective elements