The problem with most cotton blazers is that they look great on a hanger and fall apart the moment you sit down for dinner. By the end of the evening you’ve got a collapsed lapel, a back vent that’s doing something regrettable, and a garment that’s aged ten years in four hours. That is a fixable problem. The right cotton blazer, cut with enough structure to hold its shape through real use, is one of the most useful things you can own from late spring through early fall. It works over a linen shirt for something smarter, over a tee for something that looks considered without trying, and it does both without needing to be pressed back into shape afterward. We’ve been specifically looking at weight, canvas construction, and shoulder shape because that’s where most cotton blazers fail. The ones here don’t. These are blazers you can actually wear.