BUGATCHI "SHAPED FIT" BLUE PLAID LINEN MEN'S SHIRT (M)

This is a Bugatchi button-down short sleeve shirt in a classy blue plaid. The fabric is 100% linen. Although the two labels show brand and fabric composition, I can't find the size. Fortunately, I remember that it's a medium. As a quick check, it is 20 inches from the back shoulder seam to the opposite one. The buttons are also very classy. They're "pearlized" and have the brand name printed twice in blue (on the lower half, upside down). Every point about this shirt demonstrates it's a quality item. Thanks for looking!