KASK Defender Sizing

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Size

Head Circumference

55-56cm / 21 21/32 - 22 3/64"

57-58cm / 22 7/16 - 22 53/64"

59-60cm / 23 15/64 - 23 5/8"

61-62cm / 24 1/64 - 24 13/32"

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