DeMarini Men's Demarini Batting Practice Jacket 85% Nylon/ 15% Spandex 85% Nylon/ 15% Spandex; Machine Washable Our comfort-fit pattern was created to allow this BP to be worn over a game jersey The nylon/spandex blend offers 4-way stretch and provides a full range of motion Features a zip-front neck opening and a hemmed open bottom, complete with a locking bungee cord. Embroidered logos on the left sleeve and back right shoulder provide the look DeMarini players want Vietnam