Daytona Helmets Adult Size Chart

Size	Inches	Metric (CM)	Hat Size
3XS	17 1/8" - 18"	43.5 - 45.7 cm	5 4/9 - 5 3/4
2XS	18 1/8 " - 19"	46 - 48.3 cm	5 3/4 - 6
XS	19 1/8 " - 20"	48.6 - 50.8 cm	6 - 6 3/8
SM	20 1/8" - 21"	51.5 - 53.3 cm	6 2/5 - 6 2/3
MD	21 1/8" - 22"	53.7 - 55.9 cm	6 5/7 - 7
LG	22 1/8" - 23"	56.2 -58.4 cm	7 - 7 1/3
XL	23 1/8" - 24"	58.7 - 61 cm	7 1/3 - 7 2/3
2XL	24 1/8" - 25"	61.3 - 63.5 cm	7 2/3 - 8
3XL	25 1/8" - 26 "	63.8 - 66 cm	8 - 8/27
4XL	26 1/8" - 27"	66.4 - 68.6 cm	8 1/3 - 8 3/5

Please note : This is a rough guide and not exact. The shape of your head is important as the measurement you take which may affect the final fit. The sizes listed in the size chart are an approximation and are based on average head sizes. In some cases variations may occur. 

If you are ordering our slim SKULL CUP, HAWK or CRUISER and find that you are in between sizes, we recommend ordering the smaller size