XXS XS S M L XL XXL
Men 2.5"
5.7cm
3"
7.6cm
3.25"
8.25cm
3.75"
9.51cm
4.25"
10.8cm
4.75"
12.1cm
5.25"
13.2cm
Women   2.25"
5.7cm
2.5"
6.35cm
3"
7.6cm
3.5"
8.9cm
4"
10.2cm
 

How to measure: Measure your hand across the knuckles with a tape measure.