Kate Upton With Bikini Undone Told 'Showing Boobs' Unnecessary

Kate Upton thrilled fans with her swimsuit curves earlier this summer, although the August 2025 repost on X was a throwback. Showcasing her fierce silhouette in a minuscule bikini that barely covered her, the Sports Illustrated Swim star teased her cleavage while letting her bikini fall undone, just about staying safe as she sent out a sideboob flash. Posing by the ocean for another reminder of her bombshell body, Kate drove fans wild, although for one, the display wasn't satisfactory. This shamer said that Kate's chest was "saggy," adding that if they had the same, they wouldn't "show" it off.

Scroll for the photo. Clutching her bikini top's strings behind her back as she let her free arm dangle down by her thigh, Kate dropped jaws in a skimpy, multicolored bathing suit with a halterneck.

Displaying her toned back and shapely thighs, the mom of one rocked cheeky thong briefs, adding pops of hot pink, white, and blue as her swimsuit also injected summery yellows.

Posing with one leg a little in front of the other while flaunting her golden tan, Kate showed off her ample cleavage via that sideboob flash, with her barely there top just about keeping her safe. The Vosa Spirits co-owner flashed the lens a smile while wearing her hair down, completing her beachy look with a bronzer-heavy face of sunkissed makeup. No original date was provided, although Kate was likely in her early or mid-twenties at the time of the photo. The swimsuit queen made her SI Swim debut in 2011.

Click here for the photo, scroll for more. While one fan called Kate "so stunning," another body-shamed her. Hating on Kate, they said: "If I had saggy boobs like that, I wouldn’t necessarily show them off."

Kate dropped jaws in May 2024, making instant headlines for her SI Swim cover, but also for snaps accompanying her shoot.

In this photo, the 5'10''-tall model showed off her killer cleavage and gym-honed arms, going corseted in a tight black swimsuit with crisscross accents. Folding her arms while staring down the camera's lens, Kate was instantly called "beautiful" in the Instagram repost, one shared in June of last year.

"When I experienced being on the cover, I was 18 years old, and everyone was talking about me before I'd really figured out who I was. Everyone was telling me who I was. It made me expedite my journey of finding out what I stood for, who I was, why I was doing this job, why I was going through this criticism," Kate told InStyle about her first SI Swim cover.

Kate Upton wore this tight blue dress for a 2024 SI Swim party, turning heads while going braless.