Description Size for the helmets would be :XS: 53-54 cm, S: 55-56 cm, M: 57-58 cm, L: 59-60 cm basis head measurement. Kindly refer image size chart for details. DOT & ISI Certified with IS no.: IS 4151:2015 and CM/L no.: 1650145 Metallic Quick release silent buckle Removable and washable lining, it is also odor resistant helping the helmet stay fresher, longer in between cleaning Scratch resistant & UV resistant. Visor in optical polycarbonate, easy Visor mechanism
