Smith Helmet Size Chart

Wrap a soft tape measure around your head, keeping it level from front to back, just above your ears and eyebrows. Note the measurement in centimeters and find your size below. Smith's Round Contour Fit helmets are shaped for rounder heads and are sized a step differently, so check the second table if your model says “Round Contour Fit”. Give us a call if you'd like help choosing.

Adult helmets

Size	Head circumference	Approx. inches
S	51 – 55 cm	20.1 – 21.7 in
M	55 – 59 cm	21.7 – 23.2 in
L	59 – 63 cm	23.2 – 24.8 in
XL	63 – 67 cm	24.8 – 26.4 in
Vida L / Race L	59 – 61 cm	23.2 – 24.0 in

Round Contour Fit helmets

Size	Head circumference	Approx. inches
S	55 – 59 cm	21.7 – 23.2 in
M	59 – 63 cm	23.2 – 24.8 in
L	63 – 67 cm	24.8 – 26.4 in

Youth helmets with three sizes — Glide Jr., Rodeo Jr.

Size	Head circumference	Approx. inches
YXS	48 – 52 cm	18.9 – 20.5 in
YS	51 – 55 cm	20.1 – 21.7 in
YM	55 – 59 cm	21.7 – 23.2 in

Youth helmets with two sizes — Descend Jr., Icon Jr., Counter Jr., Cache Jr.

Size	Head circumference	Approx. inches
YS	48 – 53 cm	18.9 – 20.9 in
YM	53 – 58 cm	20.9 – 22.8 in

Based on Smith's official helmet size charts (centimeters). Inches are converted and rounded; when you are between sizes, go by the centimeter measurement. Questions? Give us a call and we'll help you find the right fit.