Impact Racing Helmet Sizing Chart

Determine your helmet size by measuring your head at a point 1'' above your eyebrow & a point in the back of the head that results in the largest possible measurement.

Impact Racing Size:

Small

Medium

Large

Extra Large

Hat Size Equivalent:

6-7/8 to 7

7-1/8 to
7-1/4

7-3/8 to 7-1/2

7-5/8 to
7-3/4

Inch Size Equivalent:

21-5/8 to 22

22-1/2 to 22-3/4

23-1/4 to 23-5/8

24 to
24-1/2

CM Size Equivalent:

55 to 56

57 to 58

59 to 60

61 to 62