In our most lightweight cotton twill, this shirt is garment-dyed and washed for a perfectly broken-in look.Slim Fit: cut close to the body, with fitted sleeves and higher armholes; 5¼” slimmer at the waist than our Classic Fit.Size medium has a 31" back body length, an 18" shoulder, a 41.5" chest, and a 34.5" sleeve length. Sleeve length is taken from the center back of the neck and changes 1" between sizes.Medium-spread collar. Buttoned placket.