Mizuno Supreme Series GXC94 Catcher's Mitt 33.5 (Left Handed Throw) 54.00 Mizuno Mizuno's catcher's mitts are made from top quality leather and utilize cutting edge technologies. Black, Size 33.50 Full Sized, Adult Transitional. This series features a high performance, full-grain leather shell in a youth transitional size. The transitional size provides the perfect finger stall and glove sizing for the youth player not quite ready for the full size pro glove. All Supreme Series gloves feature PowerLock technology, the simplest and most secure locking system. This technology offers the player maximum comfort for increased performance. The Supreme Series gloves also offer PalmSoft lining for unsurpassed feel and long lasting durability along with the patent pending Shock Grid Finger opening designed to disperse shock while providing the ultimate in comfort.