63 cm Head — Helmet Size

63 cm head: Size XL

63 cm (24.8 in) head circumference → size XL

An ill-fitting helmet doesn't protect properly — it should sit level and not rock. Size up if between, and replace after any impact.

Helmet size bands:

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Spare padding to dial in the fit when you're between sizes.

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Soft Tape Measure

Measure head circumference accurately before choosing a size.