Sydney Sweeney celebrated her birthday with a sun-soaked getaway to Utah, sharing a string of swimsuit photos that highlighted a viral piece from TA3’s shaping swimwear line. The Euphoria star wore the TA3 Hi Cut Sleeveless Surfy One-Piece, a model that retails for under $200 and features a lace-up back that tightens for an extra-corset-like cinch. The high-cut silhouette emphasizes sculpting and contouring, a hallmark of the brand’s “mega-sculpting” collection that has drawn attention from fans and fellow celebrities alike.

She captioned the posts “Little trip to mars” on Instagram, then added a note about fit and shapewear: “Why do we wear shapewear under our clothes but when we’re most exposed we wear the flimsiest, most shapeless garments ever?” The Sleeveless Surfy line offers a similar look with more coverage, while the original Sleeveless Surfy version provides additional color options, from sapphire blue to red and coral, giving shoppers multiple ways to achieve the same sculpted effect.

TA3 has drawn celebrity attention beyond Sweeney; Beyoncé, Billie Eilish and Ashley Graham have all posted in TA3 swimwear. The company was founded by Leila Shams, who showcased the patented pieces on Shark Tank in 2021 with a mission to help shoppers “feel confident in a swimsuit.” The brand’s site features before-and-after photos illustrating the shaping effect, and the line has since expanded into clothing, including shaping dresses that carry the same back-drawstring design.

TA3 product image

In addition to TA3 looks, Sweeney also wore a Gooseberry One-Piece Tank—the white variant that mirrors the square-necked version of the plunging So Chic One-Piece she owns in at least two colors. Gooseberry has become a recurring collaborator in celebrity-styled resort wear, signaling a growing appetite for accessible, form-enhancing silhouettes on vacation photos.

TA3 design

As fashion cycles continue to elevate sculpted silhouettes, Sweeney’s birthday posts underscore the market’s appetite for shaping swimwear that pairs affordability with performance. TA3’s Hi Cut Sleeveless Surfy One-Piece remains under $200, and the brand’s lineup has evolved to offer shaping dresses and other wardrobe staples built around the same back-drawstring concept. The Utah trip served as a public-facing moment for the label’s growing footprint in mainstream celebrity style, alongside the ongoing discussion around how shapewear and surface fabrics intersect with everyday swimwear fashion.