Easton RVB2500 Catcher's Mitt Rival Series Ball Glove (Right Hand Throw, 34.5-Inch) USA STEER HIDE: USA steer hide is some of the strongest leather in the world CUSTOM PRO FIT SYSTEM: A patent-pending customizable back of hand fit system. Back of hand strap that is adjustable allowing multiple fit range and easily replaceable to personalize with name or number OASIS LINING: Super soft cowhide lining provides durable comfort BIO-DRI: A moisture management fabric used to line the back of hand strap. Bio-Dri wicks away moisture keeping your glove dry and light 34.5" circumference catchers mitt, Welted extended palm web with Custom Pro Fit open back