Adjustable Posture Corrector

XL: Chest size: 119 - 150 cm / 47 -59 inch

S: Chest size: 46 - 68 cm / 18 - 26 inch

M: Chest size: 68 - 91 cm / 27 - 36 inch

L: Chest size: 91 - 119 cm / 36 - 47 inch