I’m A Swimsuit Designer—Here’s What I’m Packing For My European Summer Vacation

Every summer, it seems like those at the helm of the fashion industry pack their bags, automate their Out Of Office reminders, and set off to Europe— specifically, on the shores of the swankiest beach clubs and trendiest cities. What city you’re spending a month in is nearly as important as what you’re wearing— an undisputed fact insiders Adrien Bettio and Hyla Nayeri take as gospel. 437, their self-founded Canadian-based swimwear, activewear, and resortwear line, has been seen on celebrities like Kylie Jenner, Sydney Sweeney, Megan Thee Stallion, and Emma Chamberlain, just to name a few. For two childhood best friends without any formal design training, the journey from building their brand from their bedrooms to dominating social media came down to more than just well-thought business designs and thoughtful designs: it’s all about connecting with their community. 

“We’re a small, self-funded brand with no investors which allows us a lot of flexibility to create what we’re feeling and loving in the moment,” Nayeri told Who What Wear. “Adrien and I are literally the 437 demographic so when we design pieces, we can take the phase of life we’re at into consideration and it really makes us feel good about the pieces we’re creating.”

As a fashion editor who can show up to dozens of meetings and brand showings a week, it can all become a blur at times. But when meeting Nayeri at 437’s first New York City previews, I was struck by how the brand’s elevated, cool-girl vibe extended to far beyond it’s clothing offerings. Just like it was explained to me, the 437 customer isn’t just looking for the perfect bikini or the best one-piece workout unitard for gym-selfies in: she’s looking for something that naturally, seamlessly blends into her everyday life. Just like Bettio says: “she just gets it.”

Although 437 has a steady stream of drops throughout the year, there’s no time quite like the summer time: the brand unequivocally shines when the weather gets warmer. Just like the majority of their on-the-go consumers, Bettio and Nayeri are spending their summers traveling. In between opening their new Los Angeles and Toronto showrooms, the duo are heading to trending cities Rio and Sardinia,, respectively. Naturally, as swimsuit designers who spend their years longing for summer, there’s a full-proof way to pack all of the essentials. Below, scroll through all of their essentials and discover all what 437 is about.