A mitt in baseball is used to refer to the gloves that members of the defense wear. The term mitt in particular refers to the glove that the catcher wears.

Mitts in baseball are used to catch balls safely and securely. The mitt worn by the catcher in particular is shaped in a specific way to assist in catching any potential wild pitches. The catcher’s mitt is almost funnel-shaped, to help scoop the ball up. It must be no more than 38in in circumference or 15.5in from top to bottom.