When I think of polka dots I think of ’50s pin-up costumes and dolly shoes, children’s party dresses and, well, Minnie Mouse. Fun? Yes. Sophisticated? Not so much. From Dolce’s seductively sheer ...

Selena Gomez is celebrating her boyfriend Benny Blanco’s new cookbook, Open Wide, in her April 30 Instagram post, but I, personally, am just here to celebrate the polka-dot minidress.

It costs £39.99 (about $50) and has become the high street’s standout summer 2019 success story—even spawning its own Instagram account @hot4thespot with over 10k followers)—the Zara polka ...