RYZEN ZX700 FULL FACE HELMET WITH DUAL VISOR * FULL-FACE * INNER LENS : SMOKE TYPE * OUTER LENS : CLEAR LENS * ECE CERTIFIED (EUROPEAN STANDARD) * ICC CERTIFIED HELMET Size (Circumference in CM) Medium - 57-58 Large - 59-60 XL - 61-62 **Please note that we strictly implement NO CHANGE OF SIZE due to COVID-19 safety protocol.**