Hailey Bieber Strips Down and Unleashes Her Butt Workout Secrets

Jul 15 2026

Hailey Bieber has gone topless for a new advertisement campaign, showcasing her body while revealing her workout secrets for achieving a model's physique.

The 29-year-old supermodel partnered with Gap to launch The Hailey Jean, a limited-edition denim capsule set to drop on July 16. This collection reinterprets the brand’s iconic ‘90s jeans through Bieber’s contemporary perspective. In the ad, she strips down to just a pair of baggy jeans, leaving her upper body completely exposed.

She uses a top to cover her chest, striking a sultry pose for the camera.

Hailey expressed her connection to the brand, stating, “Gap has been a part of my wardrobe since I was a kid, so this came together very organically. 1996 was the year I was born and I get a lot of style inspiration from the ’90s because there was something so effortless about that era and the way people wore denim.”

She continued, “We wanted the campaign and the collection to capture that same feeling in a way that felt modern, nostalgic, and personal.”

Shortly after the campaign launch, Hailey shared insights into her fitness regimen that contributes to her slender build.

Previously, she stated she was done with Pilates, an exercise trend known for its low-impact movements. In an interview with TIME earlier this year, she remarked, “I love Pilates, I really do, but I think it’s become a little bit of a fad, and it’s really hard to find really good teachers that care about form.”

Less than two months later, she posted a photo wearing a weighted vest, an accessory that has gained traction on social media despite mixed opinions from experts regarding its effectiveness.

In the same photo, Hailey sported blood flow restriction training bands positioned just beneath her glutes. These bands are becoming increasingly popular in fitness circles.

Experts claim BFR bands help isolate glute muscles from hamstrings, compelling the glutes to engage more intensely during workouts.

This method could lead to a more focused and effective glute workout—something Hailey frequently showcases on her social media platforms.

“I love Pilates, I really do, but I think it’s become a little bit of a fad,” she said.

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