Nike Fit Therma Full Zip Jacket.

Older version of the current Nike Therma-Fit Full Zip. Warm fuzzy material on the inside and out. Zipper pockets. Thumbhole on both sleeves. According to Nike: Therma-Fit Thermal comfort through lightweight warmth and wind resistance. Nike Therma-Fit materials are engineered to keep the body warm especially in cold conditions. The tiny spaces between fibers trap air within the material while blocking wind from the outside to provide the utmost comfort for your tennis match.