The model kept warm in a black mock-neck sweater and Commando Neoprene leggings ($138). For accessories, Kendall mixed ...

Perhaps Jenner and BFF Hailey Bieber — who also attended the birthday bash, alongside husband Justin Bieber — coordinated looks before the event as the Rhode founder arrived in the same shoes.

That look is made all the more famous by celebrities like Hailey Bieber and Kendall Jenner, whose photographed outfits leaving the Pilates studio have inspired a staple uniform of their own.

Lest you thought après-ski outfits were all cable-knit sweaters and fur-lined boots, Kendall Jenner and Hailey Bieber are ...

When choosing outfits for a rectangular body shape, creating the illusion of curves and adding definition is key to perfect styling. Known for her impeccable styling sense, Kendall Jenner is a fashion ...

Kendall Jenner and Hailey Bieber were spotted wearing matching outfits during a night out in Los Angeles. The duo stepped out for dinner at Giorgio Baldi in Santa Monica on January 5. It appeared ...

The model stepped out in a super casual outfit ... shaped glasses. Jenner and her family decided to have a low-key Christmas Eve party instead of their annual all-out bash. Kendall Jenner ...

Kendall Jenner’s winter wardrobe is giving Us major aprés ski style inspo. Kendall, 29, showed off a snowy outfit during her trip to Aspen with Kylie Jenner and Hailey Bieber via Instagram on ...