The breezy Sophia midi is one of our favourite all-time hot-weather dresses. Delicate, adjustable spaghetti straps delve into a pretty V-neckline that emphasises the décolletage, while shirring around the waist creates an enviable silhouette. This is a versatile dress — pair with runners and a tote for a sporty vibe, but heels and a strappy handbag work equally well for a party.