Marucci Krewe Series 12.50" Baseball First Base Mitt: MFG3KR37S1-BK/NG Throwing Hand:Left-Handed Throw Gel-to-Shell® Technology Air activated material

Gel-to-Shell® Technology Air activated material that transforms the guard from a malleable gel into a customized

Ergonomic handle taper custom-fit for each weight drop for more bat control and better overall feel

a fresh new scientific approach to baseball cleat design through underfoot data collection from some of the game's best

This set is recommended for any serious ball player who demands high function and performance from their gear

Small: 10" and Under - Large: 10" and Over

Marucci Krewe Series 12.50" Baseball First Base Mitt: MFG3KR37S1-BK/NG Throwing Hand:Left-Handed Throw Gel-to-Shell® Technology Air activated materialFit: Tapered Shape: Standard Depth: Deep Smooth cowhide leather shell Supple leather palm lining with added cushioning Narrow tapered hand stall sizing for ideal fit Smooth microfiber wrist lining and finger lining Available in right hand throw or left hand throw Recommended for first base