The biggest size of a Baseball glove is 32.5 inches for a catcher, then 12.75 for outfield, then 12 or 12.5 for first base.
13" Glove - Large http://www.elevationlacrosse.com/Articles.asp?ID=157
get one youths hand
a small size
Depends on his size and position.
Troy Tulowitzki wears a 11.75 (11.3/4) inch glove.
he wears an 11.5" wilson
One that fits his/her hand.
The right size of glove for high school midlle infeilder is 11 1/4-11 1/2 inches.
A small size glove
An outfielder should use a glove sized 12.5 - 13 inches. 13 inches is the largest allowed in baseball.
A baseball glove protect your body and assist players in catching and fielding balls hit by batters.