-RH means you wear your glove on your right hand. It should be included at the end of the model number on your order.
Because it also means that you throw with your left hand, be sure Throws With Left Hand is shown in the cart.
This Professional Series Adult Catcher's Face Mask features a ultra-lightweight hollow wire frame with leather covering on the inside of the mask for comfort and moisture absorption. Same model worn by Mike Piazza. Includes a PWMH harness.