When @khloekardashian and @fabletics drop a scrunch-back jumpsuit with a major cutout and butt-lifting tech, you know PS editor s lwasz wants to put it to the test. 👀 She wore it for a full 60-minute bike bootcamp — and while the lift is legit, the backless design definitely had her wondering just how much support she could count on mid-burpee. Fit Check results are in. ✔️ 🏋️‍♀️ Video description: A woman takes a bike bootcamp class at home while reviewing a Fabletics X Khloé Kardashian workou