Kourtney Kardashian, Khloe Kardashian, Kendall Jenner and Kim Kardashian for Calvin Klein || PHOTOS

The Kardashian-Jenner sisters stripped down to their tighty-whities while appearing in the global campaigns for Calvin Klein Jeans and Calvin Klein Underwear. They're the latest family appearing in Calvin Klein's new family-orientated jeans and underwear campaigns that launched in November, following the likes of Solange, Dev Hynes, A$AP Rocky, A$AP Ferg and members of the A$AP Mob, and most recently, siblings Presley and Kaia Gerber. 

Willy Vanderperre for Calvin Klein

 

 Kim Kardashian for Calvin Klein

Kim Kardashian posed for a solo portrait while promoting Calvin Klein's spring-summer 2018 global campaign. The shoot was taken by famed photographer Willy Vanderperre in a barn.