SIZE U.S. Length Chest Neck Opening
Width at Hem
XS
0-2
21 1/2"
20 3/4"
7" 
16 1/4"
S
4-6
22"
21 3/4"
7 1/4"
17 1/4
M 8-10
22 1/2"
22 3/4"
7 1/2
18 1/4
L 12-14 23"
23 3/4"
7 3/4"
19 1/4"
XL 16
23 1/2"
24 3/4"
8"
20 1/4"