How To Measure A Baseball Mitt. On the other hand, children among the ages between 11years to 13years can wear mitt size 30 to 32 inches. Then, press it downward, palm side down, firmly on a flat surface to help flatten it out as much as possible.
That length is how the glove's size is determined. For chest size, measure under the arms level across the back muscles and chest. The measuring tape should be positioned approximately where the person wears a belt.
Determining your mitt size largely depends on age and position.
Take this particular measurement and subtract it from the largest baseball mitt dimension on the market (12. Rule book basically is a straight line measurement. Have the person take a deep breath when reading the measurement. The measuring tape should be positioned approximately where the person wears a belt.