For when a T-shirt isn't quite enough, but a blazer is more than you need. The overshirt sits comfortably in that space between casual and smart. Made from stretch cotton, it's easy to layer, with enough structure to pull an outfit together without feeling too formal. Wear it open over a T-shirt with chinos or denim, or button it up when the occasion calls for something sharper. One of those pieces you'll find yourself reaching for often.