Kylie Jenner Shares Waistline Secret In Bodysuit Gym Session

KylieJenner/Instagram

Kylie Jenner is dishing deets on her famous waistline and it doesn't include a fancy-pants personal trainer. The 23-year-old makeup mogul has been making headlines for drawing attention to her waist via belly chains and a stunning waist necklace this month, and it looks like the beach lounging is a front as Kylie also works out in the gym. Posting for her 235 million Instagram followers yesterday, the "Keeping Up With The Kardashians" star shared her cardio warm-up - check it out below.

KylieJenner/TikTok

Scroll for the video. Kylie, this year making headlines for her energetic Calabasas hike, was keeping it indoors. The Kylie Cosmetics CEO had filmed herself in a bit of a Boomerang and pacing on her treadmill, opting out of showing her face and instead swinging the camera to capture her snazzy, all-tan bodysuit. Kylie, who may well have been wearing an item from 40-year-old sister Kim Kardashian's SKIMS line, also showed the one workout accessory she seemingly can't live without.

Also wearing white sneakers, the Lip Kit queen filmed her super-slim waist, where a black waist-training band had been wrapped. The SWEET SWEAT waist-trimmer, making headlines this year as Kylie wearing it drove Amazon out of stock, is, per People, a: "velcro-fastened belt that helps wearers sweat more, which can increase a workout's intensity and promote the loss of water weight."

Coming in size small to XL, the Sweet Sweat trimmer retails for $21.95–$26.90. Scroll for more photos after the video.

KylieJenner/Instagram

Reviews largely give the trimmer the thumbs-up. One customer wrote: "I read a lot of reviews before I bought this product. I wanted to know if it burned inches, and it does," adding: "In the last three months, I lost three inches in my stomach and 1.5 inches in my waist."

"I spent days debating whether or not to buy this — let me just say, this has been the best Amazon purchase I have ever made," another said. "I always have difficulty sweating, but thanks to my Sweet Sweat Waist Trimmer, I drip in sweat!!" More photos below.

KylieJenner/Instagram

Kylie is less of a health nut than 42-year-old sister Kourtney Kardashian, whose latest switch to veganism adds to headlines she once made for extending her gluten-free and dairy-free living to her three kids.

Also hopping aboard the vegan train is Kim Kardashian, but Kylie continues to share non-vegan eats on her social media. The star is also a major sushi lover, having made headlines in the past for taking 3-year-old daughter Stormi to Nobu in Malibu. If you missed Khloe Kardashian's revenge bikini body, just scroll.