"A 'shirt jacket' tends to be an overshirt with details that swing it into jacket territory, but this jacket reaches that midpoint by dialing settings down to shirt mode. I've always liked the look of layering ribbed tanks and sport coats in the summer, and while it can feel a bit off putting pits to your usual tailoring, this jacket's made for just the occasion, with a hardwearing fabric that's sure to build character with each wash."---Ludwin