Nike Legend Big Kids' Dri-FIT Training T-Shirt. Sweat happens, but it doesn't have to ruin your game. This lightweight knit top uses our sweat-wicking Dri-FIT technology to move moisture away from your body, helping you stay cool, comfortable and in the zone. Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable. Single knit jersey fabric is soft and lightweight.