Fully Stitched Letters and Numbers 

S Size 36 - 19 Inches armpit to armpit 

M Size 40 - 20 Inches armpit to armpit

L  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