size	body length (in)	chest width (in)	sleeve length (in)
YS	21 1/2	17	26 1/2
YM	22 1/2	18	27 1/2
YL	24	19	30
S	27	20	33 1/2
M	28	22	34 1/2
L	29	24	35 1/2
XL	30	26	36 1/2
2XL	31	28	37 1/2
3XL	32	30	38 1/2
4XL	33	32	39 1/2

Francesco Capocci Illustrated Light Blue Hoodie