Kendall Jenner & Hailey Bieber Convinced Us to Wear Leather to the Gym

Kendall Jenner shows her toned frame in leggings as she touches down in LA

Kendall Jenner Masks Up For Hot Pilates Class With Hailey Bieber in LA

Kendall Jenner and her best friend Hailey Bieber are seen leaving a hot pilates class in LA