The EvoShield wrist guard has been a staple in baseball for a number of years. It comes in two different versions: the PRO-SRZ and the standard solid. The main differences between the two are the pull tab that makes taking the guard on and off easier and the gray seem on the underside, both only included on the Pro-SRZ. Grandal is wearing the Pro-SRZ Protective Wrist Guard in red.
You can get it at Dick’s in 5 different colors for $30.