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Plus size shapewear and workout clothes: a fit guide

By Team Sweat ·

Plus-size woman in black leggings stretching her leg on a park bench at sunset

Cover photo: AI-generated image. It shows no Kewlioo product.

Plus size shapewear should smooth and support you under clothes without pinching, rolling or making it hard to breathe. Measure your waist and hips first, choose the size that fits both, and size up if you're between two. It changes how your clothes sit while you wear it. It doesn't change your body.

What does shapewear really do?

Shapewear smooths and supports. A Cleveland Clinic hepatologist describes shapewear as mainly used to smooth out creases under clothes, a lighter job than a waist trainer, which compresses far more. You get a smoother line under a dress or jeans for a few hours, and you can take it off at night.

It can't permanently reshape you, and it won't replace exercise or sleep. Pick it because you like how your clothes look in it.

How do you measure for plus size shapewear?

Use a soft tape and measure over thin clothing:

  1. Stand straight and relaxed.
  2. Measure your natural waist, the narrowest part of your torso.
  3. Measure your hips around the fullest part.
  4. Write both numbers down, then compare them to the size chart on the product page.
  5. If your waist and hips point to different sizes, choose the larger one.

Charts differ from piece to piece, so check each one. Don't carry a size from another brand.

How should shapewear feel?

Firm but comfortable. You should be able to sit, bend, walk up stairs and take a deep breath. Check these points in the mirror:

  • No rolling or digging at the waistband, thighs or underbust.
  • No numb or tingling skin after 10 minutes.
  • No visible lines under your clothes.
  • You can eat a normal meal while wearing it.

If any of these fail, go up a size. Tighter doesn't mean smoother. Squeezing too hard makes the edges bulge.

The Cleveland Clinic article also warns that very tight compression can affect breathing and digestion. Talk to your doctor if you have reflux, heart or lung conditions, or if you're pregnant or postpartum.

Which pieces are worth trying?

The Plus Size High Waist Trainer is a pair of high-waist shaping shorts with 360-degree support around the waist, tummy and hips, made to sit smoothly under clothes. It comes in black or beige, sizes M to 3XL, and hand washing is recommended.

The Booty Lifting Scrunch Leggings have a high waistband, a textured fabric and 4-way stretch, in sizes S, M, L and 2XL. They are a final sale item, so measure carefully before you order.

The Women's 4-in-1 Body Shaper covers waist, belly and thighs in neoprene. It comes in paired sizes: S/M, L/XL and 2XL/3XL. Read its chart before choosing a pair.

FAQ

What is the best plus size shapewear?

The best piece is the one that fits both your waist and hips and feels comfortable for hours. Measure first, then compare to the chart on each product.

What size shapewear should I get if I'm between sizes?

Go up a size. A slightly roomy piece still smooths, while one that's too small rolls, digs and gets uncomfortable.

Can I work out in shapewear?

Leggings made for movement, with a stretchy, moisture-wicking fabric, work for walking and light training. Skip anything that limits your breathing or your range of motion.

Does shapewear change my body permanently?

No. It changes how your clothes fit while you wear it. Your measurements return to normal when you take it off.

Start with the shapewear collection and check each size chart.