Typically need sizes ranging from 8" to 11" . Retailers like DICK'S Sporting Goods suggest choosing a glove that fits snugly now; avoid "buying big" for the player to grow into, as a loose glove hinders control.
How to Choose a Baseball Glove - A Buying Guide - JustGloves how to buy a baseball glove
A glove is measured from the tip of the index finger down to the center of the heel. Typically need sizes ranging from 8" to 11"
(e.g., I-Web, H-Web) Common for infielders because they don't trap dirt and allow for faster ball transfers. how to buy a baseball glove