AMI

Parisian powerhouse Alexandre Mattiussi has a unique ability to imbue beautifully crafted clothing with an uncomplicated sense of joy. This season saw transitional dressing at its best and brightest: shorts were paired with vibrant knits layered underneath classic outerwear, while abstract florals and saturated plaid put an exuberant spin on laidback French tailoring.

The buy: The ultra-saturated, exploded plaid topcoat.