Adult Sizing Chart: Vapor, Charger, Velocity

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

Youth Sizing Chart: Lil' Champ

Impact Racing Size:	Small Two Inserts	Medium One Insert	Large No Inserts
Hat Size Equivalent:	6-1/8 to 6-1/4	6-3/8 to 6-1/2	6-5/8 to 6-3/4
Inch Size Equivalent:	19 to 19-1/4	19-1/2 to 20	20-1/2 to 21
CM Size Equivalent:	49 to 50	51 to 52	53 to 54