Maintain warmth with ease with the Nike Adults' Solid Therma Sphere Hood 4.0. This cold-weather hood is made from 55% recycled polyester, 13% nylon and 7% spandex for comfort and softness. The Therma-Fit technology manages body heat, and a foldover design and ponytail opening in the back add versatility. Nike Adults' Solid Therma Sphere Hood 4.0