Length (cm): XS 62.5 S 64.5 M 66.5 L 68.5 XL 70.5 XXL 72.5

Chest Width (cm): XS 59 S 61.5 M 64 L 66.5 XL 69 XXL 71.5

Indi is 5'11 wearing a medium, he could also wear an L.