iXS MTB Helmets Size Chart

Trigger X Helmet
Size	Head Circumference (cm)
S	53 - 56
M	56 - 59
L	59 - 62

Open Face Helmets & Trigger FF (with headring adjustment)
Size	Head Circumference (cm)
XS/S	49 - 54
S/M	54 - 58
M/L	58 - 62
XL (Wide)	58 - 62

Full Face Helmets (no headring adjustment)
Size	Head Circumference (cm)
XS/S	49 - 54
S/M	53 - 56
M/L	57 - 59
L/XL	60 - 62

Sizing information is provided by the manufacturer and does not guarantee a perfect fit. Please use this chart as a guide only.