JST81

Youth:

 Product measurements XS S M L XL
Chest width 17 18 1/2 20 21 1/2 23
Sleeve length 24 1/4 27 1/4 30 1/4 33 1/4 36 1/4
Body length at back 21 23 25 27 29

Adult:

 Product measurements XS S M L XL XXL 3XL
Chest width 21 1/4 22 3/4 24 1/4 25 3/4 27 1/4 28 3/4 30 3/4
Sleeve length 34 5/8 35 1/4 35 7/8 36 1/2 37 1/4 38 38 2/4
Body length at back 27 28 29 30 31 32 32 1/2