Size measurements: Small: arm pit to arm pit in. 18 length in. 27 1/2
Medium: arm pit to arm pit 19 1/2 in. and length 28 3/4 in.
Large: arm pit to arm pit in. 21 /12 and length 29 in.
XLarge: arm pit to arm pit in. and length 30 1/2 in.
XXLarge: arm pit to arm pit 25 1/2 in. and length 31 in.
XXXLarge: arm pit to arm pit 27 in. and length 32 in.