The Mizuno GMP300 is a 13.00-Inch Pro sized first basemen’s mitt made from Deguchi Kip Leather, for the ultimate in feel and softness.
- Speed Drive Technology-gloves perfectly balanced by position to provide the fastest reaction/best response possible
- Deguchi Kip Leather-tighter fibers, proprietary tanning provide perfectly conditioned leather that is stronger than the previous Mizuno Pros
- 13.00-Inch first base mitt
- Pro Sized