Balmain was founded in 1945 as a couture house, so impeccable cuts and meticulous fits are part of its DNA. This black blazer, for example, has peak lapels and lightly padded shoulders to add structure to the slim silhouette, resulting in a subtly broadening effect. The stretch-jersey fabrication makes it both really comfortable and that bit more relaxed. Wear it to dress up a T-shirt and jeans.