S M 54 55 56 57 58 59 6,5/8 6,3/4 6,7/8 7 7,1/8 7,1/4 Helmet Padding Sizes
With each hat you receive a set of linings, for example a small hat will have a set of linings to make it into a 54 size, a set of linings to make it into a 55 and another set to make it into a size 56. All linings are removable and can be washed.