Please use the following measurements when choosing the size you need. (Note: girth is the measurement from the shoulder, down through the crotch, and back up to the same shoulder again.)

Size XXS (2):
girth- 35-37 in
waist- 19-20 in

Size XS (4):
girth- 37-39 in
waist- 20-21 in

Size S (6)
girth- 40-42 in
waist- 21-22 in

Size M (8):
girth- 43-45 in
waist- 22-23 in