Helmet Sizing

For A Proper Fit:

Measuring your head is a starting point for the entire sizing process.  Due to the varying shaped heads that are apparently the same size when measured by a tape may not necessarily fit the same size.

A cloth tape measure may be used to make your initial measurements. The circumference of your head should be measured at a point approximately one inch above the eyebrows in front and at a point in the back of the head that results in the largest possible measurement. Take several measurements and use the largest one.


PLEASE NOTE THAT THIS IS A ROUGH GUIDE AND NOT EXACT. THE SHAPE OF YOUR HEAD IS AS IMPORTANT AS THE MEASUREMENT WHICH MAY AFFECT THE FINAL FIT! THE FOLLOWING SIZES ARE AN APPROXIMATION AND ARE BASED ON AVERAGE HEAD SIZES. IN SOME CASES VARIATION MAY OCCUR.

***ATTENTION: IF YOU ARE ORDERING OUR SLIM LINE SKULL CAP, HAWK OR CRUISER AND FIND THAT YOU ARE IN BETWEEN SIZES, WE RECOMMEND ORDERING THE SMALLER SIZE.***

ADULT SIZES - Approximate Measurements

Sizes Head Circumference Inches Head Circumference Metric Hat Sizes
3XS 17 1/8" - 18" 43.5 - 45.7 cm 5 4/9 - 5 3/4
2XS 18 1/8" - 19" 46 - 48.3 cm 5 3/4 - 6
XS 19 1/8" - 20" 48.6 - 50.8 cm 6 - 6 3/8
S 20 1/8" - 21" 51.1 - 53.3 cm 6 2/5 - 6 2/3
M 21 1/8" - 22" 53.7 - 55.9 cm 6 5/7 - 7
L 22 1/8" - 23" 56.2 - 58.4 cm 7 - 7 1/3
XL 23 1/8" - 24" 58.7 - 60 cm 7 1/3 - 7 2/3
2XL 24 1/8" - 25" 61.3 - 63.5 cm 7 2/3 - 8
3XL 25 1/8" - 26" 63.8 - 66 cm 8 - 8 2/7
4XL 26 1/8" - 27" 66.4 - 68.6 cm 8 1/3 - 8 3/5

CHILDREN'S SIZES - Approximate Measurements

Sizes Head Circumference Inches Head Circumference Metric Hat Sizes
S 15 1/8" - 16" 38.4 - 40.6 cm 4 4/5 - 5
M 16 1/8" - 17" 41 - 43.2 cm 5 1/8 - 5 2/5
L 17 1/8" - 18" 43.5 - 45.7 cm 5 4/9 - 5 3/4