To blow up at Milan’s fashion week, it pays to go bust.

At the spring/summer 2019 runway show for Italian streetwear line GCDS, a few models bounced down the catwalk rocking three breasts apiece.

The extra cleavage came courtesy of weirdly realistic chest prosthetics. Two breasts were molded in their normal positions with one bonus breast squeezed in between.

The clothes, including rave-ready essentials such as sporty, neon crop tops and transparent vinyl dresses, were almost as eye-catching. A collaboration with Pokémon added to the cartoonish feel, with thigh-high, lace-up Pikachu boots and Jigglypuff handbags.

Still, the overly endowed models stole the show. To many observers, they resembled the triple-breasted sex-worker character played by Lycia Naff in the 1990 sci-fi film “Total Recall.”

The collection, titled Futuro Beach, was infused with a dystopian mood. In an interview with WWD, creative director Giuliano Calza says he hopes to get millennials thinking.

“We’re a young group here — we’re all under 30 — and I wanted to talk to people our age about the future and get them thinking about plastics, water shortage and the environment,” Calza says. “Full sustainability is impossible, and I wanted this show to be a wake-up call.”

This isn’t the first time the brand has used breasts in its messaging. At the brand’s showing during New York Fashion Week last fall, GCDS models wore extreme crop tops to reveal racy “underboob.”