Reformation Swim Is Back and Better Than Ever

One-pieces and bikinis return after a five-year hiatus with the same vintage look and new bio-based materials.

A model pulls on a shirt over her Reformation bikini top
(Image credit: Courtesy Reformation)

People had a lot to say about Reformation's first swimsuits in 2019. Fashion outlets called them "the most Instagrammable." Shoppers who had built the brand's cult following, alongside celebrities including Selena Gomez, Taylor Swift, and Kendall Jenner, called the high-rise bikini bottoms and deep V-neck one-pieces "dreams," "goals," and, in one hyper-enthusiastic Instagram comment, "everything."

Reformation's own team probably agreed with those first impression reviews. Still, they labeled the collection's Econyl fabric, a regenerated nylon-substitute made from plastic bottles, "not sustainable enough." Then after selling through the initial drops, Reformation retired its swimwear section entirely.

Flash forward nearly five years: Reformation is now bringing back swim, this time with materials the brand says it can more confidently stand behind.

A model stands in front of a white wall wearing a red matching set in a guide to Reformation swim

Reformation's re-launched swimwear lineup includes a range of vintage-inspired swimsuits, dipping into references from Old Hollywood in the '40s and '50s to the early 2000s.

(Image credit: Courtesy Reformation)

Like the first collection, Ref Swim 2.0 trades in photogenic bikinis and one-pieces pulling from a range of vintage references: Old Hollywood glamour with underwire tops and high-waist briefs on one end, early aughts T-shirt tops and itty-bitty athletic bottoms on the other. Some maillots also arrive with layered necklines that bring lingerie dressing to the beach, with the effect of a bra peeking out from beneath a polka-dot or solid black top. (Sizes run from XS–XL; prices begin at $68 for a bikini top and max out at $168 for select one-pieces.)

A model wears a white and black polka dot Reformation swimsuit in front of a plain backdrop

Model Tina Kunakey fronts the Reformation swimwear relaunch campaign.

(Image credit: Courtesy Reformation)

A Reformation model wears a white Reformation swimsuit in front of a plain backdrop

The collection plays off Reformation's design DNA while also introducing a brand new material: Evo, a castor bean-based fabric.

(Image credit: Courtesy Reformation)

The big change that made Reformation feel ready to relaunch is the material composition stamped on each swimsuit's tag. Econyl from the first collection is still present, but only in 20 percent of the lineup (and, it's in the form of fabric reused from the 2019 swim capsule's leftovers). The other 80 percent of the collection is made of a castor bean-derived fabric called Evo.

"This new bio-based material—that's kind of what we think of as a best-in-class step forward for swim," Reformation chief innovation officer Alison Melville tells Marie Claire.

A model pulls a shirt on over a two piece Reformation swimsuit

"As a brand, we're still trying to walk away from anything that's fossil fuel derived in general and really go toward more renewable resources," Melville tells Marie Claire. Bikinis like the one above use the bio-based Evo fabric instead.

(Image credit: Courtesy Reformation)

The Evo swimsuits are entirely plant-based; no plastic to be found. That's a notable innovation in swimwear, where most water-resistant pieces are made from fossil-fuel derived (and environment-unfriendly) synthetics like polyester and nylon. "As a brand, we're still trying to walk away from anything that's fossil fuel derived in general and really go toward more renewable resources," Melville says. This collection is 80 percent of the way there, by Reformation's count.

Touching the swimsuits, shoppers will notice a difference between the materials: the Econyl one-pieces have a sleek, athletic feel fit for an Olympic-grade lap pool, while the Evo bikinis have the stretch and softness of a cotton T-shirt.

A Reformation model stands in front of a wall wearing a two tone one piece swimsuit

Each Reformation swimsuit includes a guppy bag, a laundry pouch that prevent shedded microplastics coming off an Econyl swimsuit from getting into waterways.

(Image credit: Courtesy Reformation)

The collection will also be sold in small quantities. Sustainability-wise, this helps Ref avoid overproduction and piles of unsold bikinis left in its L.A. warehouses. For anyone on the wait list, it means pieces might sell out quickly.

Missing today's launch if it sells out doesn't mean missing swim forever. Melville says the category won't have another fade to black exit, even if the company considers testing new materials. By the brand's metrics, the response last time was too good to abandon forever—and vacation-ready beachwear is in its California DNA.

Swimwear is permanently back, baby. Now that it's out in the world, there's one question left to ask: What will everyone else call it this time?

Reformation swim is available to shop now online and in select stores.

Halie LeSavage
Senior News Editor (Fashion & Beauty)

Halie LeSavage is the senior fashion and beauty news editor at Marie Claire, where she assigns, edits, and writes stories for both sections. Halie is an expert on runway trends, celebrity style, emerging fashion and beauty brands, and shopping (naturally). In over seven years as a professional journalist, Halie’s reporting has ranged from fashion week coverage spanning the Copenhagen, New York, Milan, and Paris markets, to profiles on industry insiders including stylist Alison Bornstein and J.Crew womenswear creative director Olympia Gayot, to breaking news stories on noteworthy brand collaborations and beauty launches. (She can personally confirm that Bella Hadid’s Ôrebella perfume is worth the hype.) She has also written dozens of research-backed shopping guides to finding the best tote bags, ballet flats, and more. Most of all, Halie loves to explore what trends—like the rise of doll-like Mary Janes or TikTok’s 75 Hard Style Challenge—can say about culture writ large. (She justifies almost any purchase by saying it’s “for work.”) Halie has previously held writer and editor roles at Glamour, Morning Brew, and Harper’s Bazaar. Halie has been cited as a fashion and beauty expert in The Cut, CNN Underscored, and Reuters, among other outlets, and appears in newsletters like Selleb and Self-Checkout to provide shopping recommendations. In 2022, she was awarded the Hearst Spotlight Award for excellence and innovation in fashion journalism. She holds a Bachelor’s Degree in English from Harvard College. Outside of work, Halie is passionate about books, baking, and her miniature Bernedoodle, Dolly. For a behind-the-scenes look at her reporting, you can follow Halie on Instagram and TikTok.