Nike Pro Shield Hyperwarm 1/2 Zip - Women'sThe Nike Pro Shield Hyperwarm Half-Zip is designed for ultimate performance in extreme conditions. It uses Dri-FIT® jersey fabric for warmth in cold weather, and specially placed double-knit fabric for wind and water resistance. There are also thumbholes in the sleeves for added warmth. 82% polyester/18% spandex. Imported.