The "Keeping Up with the Kardashians" star took to Instagram on Friday to share the black-and-white image, reports aceshowbiz.com.
The photograph was taken from behind, exposing Kendall's bare back. The 19-year-old model flashed her side breast as she bent her body towards her white bed to put the back pocket of her jeans to be the focus of the camera.
A caption for the image read: "#mycalvins moment. thanks to @calvinklein for my new jeans. back pocket."