hailey bieber shows off her toned midriff in a crop top and flared leggings while attending her pilates class in west hollywood, california-101022_18

hailey bieber shows off her toned midriff in a crop top and flared leggings while attending her pilates class in west hollywood, california-101022_26

Hailey Baldwin flashes her flat stomach in crop top with white leggings after yoga in Los Angeles

Hailey Bieber Loves These Grey Under $100 Leggings

Hailey Bieber Did Pilates in the Flattering Leggings Style Hollywood Loves — but With a Twist

Kendall Jenner and Hailey Bieber showcase their runway figures in leggings as they arrive to Pilates

Hailey Bieber shows off her toned midriff in a crop top and flared leggings while attending her Pilates class in West Hollywood, California

Hailey Bieber Shows Off Abs in One-Shoulder Sports Bra

Hailey Bieber shows off her toned midriff in a crop top and flared leggings while attending her Pilates class in West Hollywood, California

Kendall Jenner and Hailey Bieber showcase their runway figures in leggings as they arrive to Pilates