Helmet Diagram
Measuring Guide
Size & Fit Guide
  • Measure the circumference of your head and find the corresponding size below.
  • For proper fit the helmet should fit snug and sit 1/4 inch above the eyebrow.
Helmet Size Hat Size Head Circumference
(Inches)
Head Circumference
(Centimeters)
Small 6 1/2 - 7 1/8 20.5 - 22.5 52-57
Medium 6 7/8 - 7 1/2 21.5 - 23.5 55-60
Large 7 1/8 - 8 3/4 22.5 - 24.5 57-62
X-Large 8 3/4 + 23.5 - 25.5 62-67


Still have questions? Please call 800-366-3070 or email info@inlinewarehouse.com