It is produced using In Mold technology ( Bond a tough outer microshell to a helmet's internal EPS liner reinforcing the liner critical areas and eliminating adhesives) with 21 ventilation holes. Roc Loc 5 fit System. POV visor feature an internal clutch, which allows 15 degrees of vertical adjustment and creates a connection that prevents the visor from rattling and coming loose over rough roads and trails). Fit pads made of Coolmax. Size chart is S (51- 55cm), M (55-59cm) & L ( 59- 63cm).