The Nike Sphere Dry Long Sleeve Running Hooded Top features warm thermal fabric and excellent quick dry fabric to help your run and training more efficient than ever. Its lightweight warm fabric (Nike Sphere Thermal) offers unrivalled insulation yet lightweight experience during highly intensive training. While Nike Sphere Dry provide maximum insulation from cold and wind while reducing weight and bulk. This running top is designed so that it can be worn alone or as part of a multi-layering system. This running top also feature a thumbholes that help provide extra warmth and comfort. They also help keep the sleeve cuffs in place, keeping you as comfortable as possible. An asymmetrical half-zip design minimizes chaffing to increase comfort. The garment also feature Dri-FIT fabric to help wick sweat away to the surface, where it quickly evaporates. Its 3D fabric structure creates space between the body and the garment, allowing air heated by the body to circulate freely and help keep you warm.