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Suomy Size Chart

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Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Suomy Helmet Sizing

Helmet Size Head Size (cm) Head Size (in)  Hat Size
XS 53 - 54 20 1/2 6 1/2 - 6 5/8
SM 55 - 56 21 1/4 6 3/4 - 6 7/8
MD 57 - 58 22 3/8 7 - 7 1/8
LG 59 - 60 23 1/8 7 1/4 - 7 3/8
XL 61 - 62 23 5/8 7 1/2 - 7 5/8
2XL 63 - 64 24 7 3/4 - 7 7/8
3XL 65 - 66 24 3/8 8 - 8 1/8

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.