Measurement guide - measure circumference of your head starting in the middle of your forehead.
X-small / Small 19.7 - 21.5 in (50 - 55 cm.) Small / Medium 21.5 - 22.75 in (55 - 58 cm.) Large / X-large 22.75 - 24 in (58 - 61 cm.)
ABS Outer Shell with EPS high impact absorbing foam complete with Triple 8 moisture-wicking Sweatsaver liner.
Includes 2 sets of fit pads to customize fit. Adjustable chin strap with strong clip buckle. Premium quality manufacturing and protection from Triple 8.