The listing, Waist trainer has ended.
Enter waist training: wearing a corset-like contraption (yes, like the ones from the 1500s) to cinch your core, hips, and back. The idea is to wear it for a certain amount of time every day, and eventually, your body "molds" itself into a slimmer figure. Sounds easy enough—Jessica Alba told Net-a-Porter she used this to lose the baby weight and Khloé and Kim Kardashian, Kylie Jenner, and Amber Rose have posted selfies sporting the waist-cinching tool: