Stay warm before and after your workout in the Nike Therma-FIT Top, an oversized layer of soft and fuzzy French terry fabric that goes on easily over your workout wear. Cinch down the hem to keep out the cold. Feature 1:Fuzzy French terry fabric feels soft and comfortable. It comes in an oversized fit that layers easily over your workout clothes. Feature 2:Nike Therma-FIT technology helps manage your body’s natural heat to help keep you warm in cold-weather conditions.