D640 / D645

Adult:

Product Measurements S M L XL 2XL 3XL 4XL
Body Length 30 1/8 31 1/8 32 1/8 33 1/8 33 5/8 34 5/8 35 5/8
Chest Width (Laid Flat) 21 1/2 23 24 1/2 26 27 1/2 29 1/2 31 1/2
Neck Circumference 16 1/2 16 3/4 17 1/4 17 3/4 18 5/8 19 3/4 20 3/4
Neck Spec Size 14 1/2-15 15 1/2-16 16 1/2-17 17 1/2-18 18 1/2-19 19 1/2-20 20 1/2-21
Sleeve Length 33 1/2 34 1/2 36 37 37 1/2 38 38 1/2