NIKE Women's Racer Half-Zip Running Long Sleeve Top Dri-FIT fabric to wick away sweat and help keep you dry and comfortable Mock neck that zips up to the chin for warmth and protection from the elements Raglan sleeves with thumbholes at the cuffs for natural range of motion and to keep hands warm Contrast panels for athletic style Fabric: Dri-FIT 90% polyester/10% spandex