Sandbox Helmet Size Chart

    Adults

    Size

    Small

    Medium

    Large

    Centimetres

    52 - 54cm

    55 - 57cm

    58 - 61cm

    Inches

    20.5" - 21.3"

    21.7" - 22.4"

    22.8" - 24.0"

    Hat Size

    6 1/2 - 6 3/4

    6 7/8 - 7 1/8

    7 1/4 - 7 5/8

     

    Junior

    Size

    Ace

    Centimetres

    48 - 54cm

    Inches

    18.9" - 21.3"

    Hat Size

    6 - 6 3/4

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