To help you find the correct helmet size, measure the circumference of the head above
the ears and refer to the conversion chart below. These are an approximation as
some brands may differ slightly because of padding and shell design.
Helmet Conversion Chart
SIZE
CIRCUMFERENCE
HELMET SIZE
XS
20 -20 1/2"
6 3/8 - 6 1/2
S
20 3/4 - 21 1/2"
6 5/8 - 6 3/4
M
21 1/2 - 22"
6 7/8 - 7
L
22 1/4 - 22 3/4"
7 1/8 - 7 1/4
XL
23 - 23 1/2"
7 3/8 - 7 1/2
XXL
23 3/4 - 24 1/4"
7 5/8 - 7 3/4
Fitted Cap Size
(*Also used to size Catcher's Headgear)
