Retro Motorcycle Helmet National Standard Certification Semi-helmet Men Women Electric 318 Knight

Applicable scenario: Commuting Applicable group: Adults Style classification: Half-helmet Scope of application: Electric vehicles material:ABS Processing: No Certification information: Applicable season: Universal throughout the

Note: The size chart is the recommended size, and there is an error of about 2CM due to manual measurement and different head shapes. Please try it on yourself as the standard

size S(55-56CM)M(57-58CM) L(59-60CM)XL(61-62CM)XXL(63-64CM)