Cool mom Kris Jenner wants us all to know that Kylie Jenner borrows her old clothes

This swimsuit is practically 10 years older than Kylie.

Kris Jenner is not a regular mom, she’s a cool mom, and she wants the world to know it.

The momager extraordinaire took to social media to share her faux-rage at the fact that 18-year-old Kylie had stolen one of her old swimsuits for her post-birthday holiday in Mexico with Kendall, Tyga and the Baldwin sisters.

Kris confirms in the caption that the swimsuit dates back to 1989, making it almost a decade older than Kylie.

She even included a #WhoWoreItBetter hashtag, so feel free to jump online and let her know.