HCI-115 Half Helmet German-Matt Black (X-Large)
Adult Helmets Size Chart Size Centimeter Inches Hat Size XS 52 - 53 20 1/4" - 20 7/8" Size SM 54 - 55 21" - 21 5/8" Size MD 56 - 57 21 3/4"- 22 3/8" Size LG 58 - 59 22 1/2" - 23 1/8" Size XL 60 - 61 23 1/4" - 24" Size XXL 62 - 63   24 1/8" - 24 7/8"   7 7/8 - 8