Triple8 Certified Size Chart

To ensure a perfect fit, measure the circumference of your head starting in the middle of your forehead and match it with the sizes below:

XS/S 20 – 21.25 in (51 – 54 cm)

S/M 21 – 22.5 in (53 – 57 cm)

L/XL 22.5 – 23.5 in (57 – 60 cm)

PRO TIP: If your measurements are in-between the sizes shown or you’re simply in doubt, we strongly recommend sizing up to the larger size. We have found over the years that customers do better when they choose the larger size.