Nike Men's Dri-Fit Element Sphere 1/2 Zip Running Shirt Features:Nike Sphere fabric creates air space to help reduce cling and keep you dry and comfortableDri-Fit to help keep you dry and comfortableThermal fabric that helps insulate your body during cold-weather activitiesThumbhole cuffs and fold-over mittens for warmth and enhanced fitReflective elements stand out in low-light conditionsRaglan sleeves provide wide range of motionMock neck for warmth and coverageSide zip pocket for small storageFabric: 93% Polyester 7% Spandex