A fantastic four-season plaid poplin from Italy makes a great sport shirt for transition weather... the white in the ground gives it the perfect amount of lift. This one's got a modified spread collar with lightweight, nonfused interlining for a soft, relaxed look. As always, the cut is slim but never skinny, with a high armhole for mobility and a long-enough-to-stay-tucked-in shirttail. (Sid likes it this way, but you can always get it shortened.) It's made with single-needle stitching, 22 stitches/inch, flat-felled seams, and thick, 3.5mm Trocas shell buttons.