Size Chart - Men I Shirts XS S M L XL Chest 19.5 20.5 21.7 22.8 24 Front length 28.5 29.5 30.3 31.1 31.9 Sleeve length 24.6 25.6 25.8 26 26.2 Back width 17.7 18.7 19.3 19.9 20.5 Shoulders 16.5 17.5 18.5 19.5 20.5 All measurements in inches.