Wilson A1K Series: A1KBB4CM1714 Catcher's Mitt 33 Catcher Model with a 2-Piece Web Fastbreak Construction combines the expertise of Wilson A2000 technicians with materials optimized for a quicker break in Pedroia Fit All of the fit modifications Dustin Pedroia requestsincluding a snug fit, long laces, smaller hand opening and low profile heel Low profile heel for less rebound on bad-hop grounders and to make the glove easier to close Pro Stock Patterns - The same base patterns used on the legendary Wilson A2K and A2000 models Pro laced T-web catcher's mitt with a pro style pattern Fast break construction with materials that are optimized for a quicker break in Pro Stock Patterns means that it uses the exact same base patterns used on our legendary A2K and A2000 models Pedroia Fit- tight fit, long laces, smaller hand opening and low profile heel