Small Size 36 , 19 Inches armpit to armpit
Medium Size 40 , 20 Inches armpit to armpit
Large Size 44 , 22 inches armpit to armpit
XL Size 48 , 24 Inches armpit to armpit
XXL Size 52 , 26 Inches armpit to armpit
XXXL Size 56 , 28 Inches armpit to armpit to armpit