Nike Dri-FIT Performance Half-Zip Men's Top, Black Body Dri-FIT 57% polyester, 43% wool Panels Dri-FIT 80% polyester, 20% spandex Imported Half-zip design for temperature control Flat seams feel smooth against your skin as you run Back neck tape with repeat Nike Running print for durability Thumbholes help keep sleeves in place and hands warm Reflective elements for enhanced visibility in low light