Layer up and keep moving in the Nike Junior Boys' Dri-FIT Miler Half-Zip Top in Black. Built for runs in cooler weather, it features sweat-wicking performance and thoughtful details like thumbholes and a half-zip collar for extra coverage. Whether training or heading out for school sports, this top helps young athletes stay dry, warm and focused. Model is 4'7 ½'' and wears size Medium. Waist measures 25.5" and Chest measures 27.5".