Fly Racing Default Cheek Pads (L)

	U.S. Hat Size	Inches	CM
YS	5-7/8 - 6	18.25" - 19"	47 - 48
YM	6-1/8 - 6-1/4	19.00" - 19.75"	49 - 50
YL	6-3/8 - 6-1/2	91.75" - 20.5"	51 - 52
XS	6-5/8 - 6-3/4	20.5" - 21.25"	53 - 54
S	6-7/8 - 7	21.25" - 22"	55 - 56
M	7-1/8 - 7-1/4	22" - 23"	57 - 58
L	7-3/8 - 7-1/2	23" - 23.75"	50 - 60
X	7-5/8 - 7-3/4	24" - 24.5"	61 - 62
2X	7-7/8 - 8	24.5" - 25.25"	63 - 64
3X	8-1/8 - 8-1/4	25.25" - 26"	65 - 66
4X	8-3/8 - 8-1/2	26" - 26.75"	67 - 68
5X	8-5/8 - 8-3/4	26.75" - 27.5"	60 - 70

To determine helmet size: Measure around head one inch above the eyebrows and across the largest portion on the back of the head. Use the above cross referencing chart for correct size.