Reality star Kourtney Kardashian is working on toning her post-baby body.
The “Keeping Up with the Kardashians” star posted an Instagram pic wearing a waist trainer, a supplementary fitness tool used by other Hollywood moms… including sister Kim Kardashian and Jessica Alba.
Kourtney wrote, "Starting my Monday with a little waist training before I go to the gym! #onamission #waistgangsociety Go over to @premadonna87 or @pre_shop to get yours!"
Kourtney gave birth to son Reign Aston last December, her third child with boyfriend Scott Disick. They also have son Mason, 5, and daughter Penelope, 2.