30-day Clinical Shapewear Study
Mass & Slim Shapewear
Comfort you can feel. Shaping you can see.
Mass & Slim shapewear combines textured 3-D fabric, Tourmaline beads, and supportive shaping to help women feel comfortable and confident in the clothes they already love.
It is designed to smooth your silhouette, create a flatter-looking stomach, and lift the buttocks while remaining comfortable enough for everyday wear.
Comfort comes first
3-D fabric designed to move with you
The textured 3-D fabric follows your natural curves and is designed to provide supportive shaping without harsh pinching or squeezing.
Embedded Tourmaline beads create a gentle micro-massage as you move, helping support circulation and smooth the appearance of cellulite with consistent wear.
- Comfortable daily shaping: Flexible support designed to move with your body.
- A smoother-looking silhouette: Helps create a flatter-looking stomach and a smooth finish beneath clothing.
- Discreet under outfits: Designed to minimize bulky, visible lines.
- Made for busy days: Wear it beneath dresses, workwear, scrubs, jeans, or everyday outfits.
Shape, smooth, and lift
Feel supported in the clothes you love
The Shorts and Leggings are designed to lift the buttocks and create a flatter-looking stomach while worn. The Waist Shaper provides focused support around the midsection.
Choose the coverage that works for your day, from waist and upper-thigh shaping beneath a dress to full-length support under pants and scrubs.
Evidence beyond promises
Our 30-Day Clinical Shapewear Study
We stand behind our Mass & Slim shapewear, which is why we invested in third-party testing. Farcoderm, an independent testing laboratory, evaluated the Mass & Slim line during a 30-day study.
30 participants, ages 18–55
Participants wore the shapewear for 8 hours per day over 30 days while following a balanced diet. Individual results may vary.
The “up to” figures shown below are maximum individual changes reported from the third-party study. They are not average or guaranteed outcomes. Results can differ by person, fit, wear time, and routine.
Find your everyday fit
Choose your Mass & Slim coverage
See the shaping area, everyday benefit, and reported study figures beside each style.
Waist, hips, and upper thighs
Mass & Slim Shapewear Shorts
A comfortable foundation beneath dresses, skirts, and shorter hemlines. The Shorts shape the waist, hips, and upper thighs while helping lift the buttocks and create a smoother-looking stomach.
- Shapes the waist, hips, and upper thighs.
- Designed to lift the buttocks while worn.
- Helps create a smoother-looking silhouette beneath clothing.
Study participants using the Mass & Slim Shapewear Shorts saw:
- Up to 3.2 cm reduction in hip circumference*
- Up to 2.3 cm reduction around the thighs*
Focused midsection support
Mass & Slim Waist Shaper
Firm, focused support for the waist and stomach area. Wear it beneath tops and dresses or layer it with another Mass & Slim style when you want extra midsection shaping.
- Targets the waist and stomach area.
- Helps create a flatter, smoother-looking midsection while worn.
- Provides focused coverage without a full-length garment.
Study participants using the Mass & Slim Waist Shaper saw:
- Up to 4.5 cm reduction in waist circumference*
- Up to 3.5 cm reduction in hip circumference*
Full-length coverage
Mass & Slim Shapewear Leggings
Full-length shaping from waist to ankle for pants, jeans, scrubs, and longer outfits. The Leggings support the waist, hips, thighs, calves, and ankles while helping lift the buttocks.
- Full-length shaping from waist to ankle.
- Designed to lift the buttocks while worn.
- Ideal beneath pants, jeans, scrubs, and longer outfits.
Study participants using the Mass & Slim Shapewear Leggings saw:
- Up to 3.2 cm reduction in hip circumference*
- Up to 2.3 cm reduction around the thighs*
*These “up to” figures represent maximum individual changes reported in the 30-day third-party study. They are not average or guaranteed results. Participants wore the shapewear for 8 hours daily while following a balanced diet. Individual results may vary.
Want to Review the Research?
Read the complete report, including the study method, measurements, and findings.
Read the Full Clinical Study PDFThe PDF opens in a new browser tab.
Try Mass & Slim for 60 Days
Feel the shaping from the first wear and give yourself time to make Mass & Slim part of your routine. Your purchase is backed by our 60-day money-back guarantee.
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