kim kardashian-1Reality TV star Kim Kardashian West wears two pairs of Spanx when she is feeling “heavier” to help get a flat stomach.

“Sometimes I wear two pairs of body shapers on top of each other – especially when I am heavier, I definitely double it up,” the Keeping Up With the Kardashians star, 35, wrote via her app, reports usmagazine.com.

She added: “They really hold you in and make you feel secure.”

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The mother of two, who has three-year-old daughter North, and six-month-old son Saint with her rapper husband Kanye West, added: “The shorter shorts, I only wear with a short dress – instead of underwear, basically. But I prefer the super high-waisted shorts that come all the way down to my knee.

“I just recently got introduced to the footless tights, which I can wear with longer dresses like this – so you’ll never see my Spanx line because the seam is lower. I typically like them past the knee or right at the knee.

“They really hold you in and make you feel secure,” she added.