Black leggings may be an athleisure staple, but as Hailey Bieber and Kendall Jenner prove, there’s plenty of ways to style them. On Saturday, the longtime friends were spotted leaving Forma Pilates in Los Angeles,

Hailey Bieber and Kendall Jenner's friendship is as strong as ever, which means they even coordinate their athleisure outfits, obviously. The two models were photographed leaving Forma Pilates in Los Angeles on Saturday,

Kendall Jenner was on hand to support her friend Hailey Bieber as the pair headed out for dinner together amid fears not all is right with Hailey and her husband Justin Bieber