86% nylon/14 % spandex Xtreme compression cloth (colors) * 86% polyester/14% spandex Xtreme compression cloth (white) * Reinforced XC yoke for added durability in contact area * Z7 front, back and side inserts for superior ventilation * Outside locker label * V-neck collar * Contrast color inserts * Set-in sleeves * Dropped tail hem and side vents