Lifestyle Style Stars Who Wear Waist Trainers All the Kardashians, Kim Zolciak, Snooki and more of your favorite reality stars all swear by the medically questionable weight loss device By Alex Apatoff Alex Apatoff Instagram Twitter Alex Apatoff is the Executive Editor of PEOPLE Digital. She has been with the brand for more than a decade, holding various roles on the Style and Beauty team before becoming the site's Lifestyle Director to coordinate the work across the commerce, evergreen, features and marketing teams. Prior to her role at PEOPLE, Alex worked at Us Weekly (where, among other things, she oversaw the Fashion Police pages) and graduated from Northwestern University with a Bachelors in Journalism. People Editorial Guidelines and Sarah Kinonen Published on December 15, 2015 03:31 PM Share Tweet Pin Email Trending Videos 01 of 04 KYLIE JENNER, KOURTNEY & KHLOÉ KARDASHIAN You know what they say, the family that wears festive holiday-themed waist trainers together … we're not going to finish that sentence. 02 of 04 KHLOÉ KARDASHIAN Courtesy Khloe Kardashian How does Khloé stay in shape? By eating right, working out regularly and (if her Instagram is to be believed) waist training all day err' day. “I don't believe in numbers,” she recently told PEOPLE. “I don't believe in one size fits all. As long as I can lay my head down at night, that's all that matters. It's not about fitting someone else's standards.” 03 of 04 KOURTNEY KARDASHIAN Courtesy Kourtney Kardashian The “queen of multitasking” sports her bright blue cincher while cleaning out her absurdly huge shoe closet, proving you really can sneak in a “workout” at any time. 04 of 04 KYLIE JENNER Courtesy Kylie Jenner Even the youngest member of the Kardashian-Jenners has tried out the corset (and took a selfie, of course). In the snapshot, the 18-year-old wears the colorful shapewear (which is covered in mini cartoon Kylies, no less), claiming she wore it while walking her pups. “Nothing wrong with a little extra help,” she informed followers.