A shirt dress in the summer will never steer you wrong, as evidenced by Scarlett Johansson on July 1.

The A-lister started the season’s balmiest month in the most lightweight of looks: a polka-dot shirt dress, courtesy of Prada.

Johansson is currently on the last leg of her Jurassic World: Rebirth press tour, before it hits theaters on July 2.

Early today, she was greeted by Seoul, Korea’s current heatwave (and thousands of fans, of course). At the photo-call, Johansson beat the 90° Fahrenheit swelter in head-to-toe Prada, starting with a silk chiffon shirt dress styled by Kate Young.

The $6,000 polka-dot piece appeared partially sheer, which upped the overall airiness. A bowling collar and cascading buttons added a surprising ’50s-inspired finish.

On Prada’s website, the model wore the button-down with nothing but lingerie, also in black. Johansson’s thigh-length slip, however, made it suitable for daytime dress.