Nike hyperwarm tight junior boys the kids nike hyperwarm tight is perfect for training sessions when the colder weather sets in designed with hyperwarm fabric that uses the lining of the tights to hold warm air against the skin while the sweat wicking properties help to keep you dry and warm these nike tights also feature a wide elasticated waistband with flat lock seams that help to reduce skin irritation and chaffing for a comfortable fit completed with the nike swoosh to the left thigh