Cheek pabds for all SZ-R VAS models. Head size Helmet size Tighten Standard Looser 54 XS - - - 30mm 25mm - - 55-56 S - - 30mm 25mm 20mm - - 57-58 M - - 30mm 25mm 20mm - - 59-60 L - - 25mm 20mm 15mm - - 61-62 XL - - 25mm 20mm 15mm - - 63-64 XXL - - 20mm 15mm - - - *Example picture