On March 13, 2026, Hailey Bieber posted a single photo to Instagram and the internet collectively lost its mind. In a bright yellow string bikini — tiny triangle top, barely-there bottoms — she captioned the post simply: "it's summer." The photo racked up 1.6 million likes before most people had even finished their morning coffee. Same, Hailey. Same.
With spring break already in full swing and Coachella weeks away, the Rhode founder just unlocked the season we've all been waiting for. And her bikini game? As effortlessly perfect as ever.
Photo via Hola / Getty Images
The Moment That Broke the Internet (Again)
Hailey has always been the kind of person who makes casual look curated. The yellow bikini post didn't come with a location tag or a caption essay — just three words and a sun emoji that said everything. Fans flooded the comments calling her the "summer starter pack" and, honestly, we have to agree. When Hailey Bieber declares it's summer, summer obliges.
The bikini itself is classic Hailey: a tiny triangle top with thin string ties, micro bottoms that lean firmly into the barely-there category. Nothing overly structured, nothing trendy-in-a-way-that-will-feel-dated-in-six-months. Just the kind of lean, confident string bikini that looks equally good in a photo and on an actual beach.
And that's not the only look she's been serving lately. Just two weeks prior, she was spotted in a Sommer Swim Ella Nero bralette top with gold hardware — the kind of barely-there-meets-elevated detail that's very on-brand for her. Then came the Oscars after-party, where she layered a sheer black dress directly over a pink bikini top, essentially confirming what we already knew: Hailey treats swimwear as a wardrobe category, not a special occasion.
Photo via Reality Tea
The Hailey Bieber Bikini Formula
If you've followed Hailey's style for any amount of time, you know there's a pattern. She gravitates toward:
- String bikinis with minimal coverage — triangle tops, thin ties, micro bottoms
- Bold color pops — yellow, bright red, cobalt — worn with zero hesitation
- Gold hardware details — tiny clasps, rings, and chain accents that elevate a simple suit
- The bikini-as-an-outfit move — worn under sheer dresses, linen shirts, and out to dinner
It's a look that's confident without trying too hard — and it's exactly the kind of style that doesn't require a designer price tag to pull off.
Get the Look: Hailey's String Bikini Energy for Under $40
Hailey's Sommer Swim pieces run $80–$120 per piece. We love her for it, but we're not buying it. Here's the good news: the string bikini aesthetic she owns is entirely achievable for a fraction of the price — and the Audi Swim Bow Babe Collection is the move.
The Bow Babe Contrast Top in Pink ($17.99) is a fully adjustable triangle top with the kind of low-key contrast detail that photographs beautifully — in pink, it channels the same bright-but-wearable energy as Hailey's yellow bikini moment. Pair it with the Bow Babe Contrast Bottoms in Pink ($17.99) for the full matching set, or mix with the Sky Blue Bottoms ($17.99) if you want to channel her color-mixing instincts. The complete set runs $35.98 — less than a single strap on a Sommer Swim bikini.
Made from Luxe-Flex nylon-spandex (the same premium material that holds its shape in and out of the water), these pieces are designed for the kind of wear Hailey would actually approve of: from the beach to the bar, from a spring break pool deck to an Oscars after-party.
Spring Break Is Now
Hailey Bieber said "it's summer" on March 13th, and honestly — she's right. Spring break is in full swing, Coachella is around the corner, and if you're still waiting for permission to pull out your best bikini, consider this your sign. String bikinis, bold colors, tiny tops. That's the assignment.
Want to dig deeper into the string bikini style universe? Our complete String Bikini Guide 2026 covers everything from fit to styling to how to wear it beyond the beach. And if the triangle top aesthetic is calling your name, the Triangle Bikini Style Guide has every angle covered.
Hailey already declared summer open for business. Now it's your turn.
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