TheBlackPurple
Mass & Slim Shapewear Leggings
Smooth, Shape, and Support from Waist to Ankle
Full-length anti-cellulite shapewear leggings designed for women with real schedules. Nurses, moms, professionals, and women over 45 who want a smoother silhouette and comfortable support from morning to night. Mass & Slim Leggings use embedded Tourmaline beads to gently support circulation and lymphatic flow while shaping your waist, hips, thighs, calves, and ankles.
- Smooths the appearance of cellulite from waist to ankle
- Shapes hips, thighs, calves, and lifts the buttocks
- Supports healthy circulation and lymphatic flow
- Helps reduce inches over time
- Breathable bamboo-viscose for 8 to 12 hour comfort
- Invisible under jeans, scrubs, dresses, and work pants
Most shapewear squeezes and compresses. Mass & Slim works with your body. The innovative fabric moves with you, offering instant shaping and visible improvements with consistent wear.
Why Women Over 45 Choose Mass & Slim Leggings
Full-Length Shaping from Waist to Ankle
The high-waisted, seamless design smooths your waistline while sculpting your hips, thighs, calves, and ankles. A sleek silhouette that works invisibly under clothing, all day long.
Comfortable Enough for a 12 Hour Shift
Unlike traditional shapewear that pinches and rolls, Mass & Slim Leggings move with your body. The breathable bamboo-viscose blend stays cool against the skin, doesn't roll down, and doesn't dig in, even after long hours on your feet.
Real Support for Tired, Heavy Legs
For women dealing with leg fatigue, swelling, varicose veins, or lymphatic concerns, the gentle full-length compression and Tourmaline micro-massage help calves and ankles feel lighter and more supported throughout the day.
Clinically Tested. Independently Verified.
In a 30-day third-party clinical study, participants who wore Mass & Slim 8 hours a day experienced:
Results based on a third-party clinical study. Individual results may vary.
How Tourmaline Micro-Massage Technology Works
Hundreds of small Tourmaline beads are embedded directly into the fabric. As you move throughout your day, the beads create a gentle, continuous micro-massage against the skin. That subtle stimulation helps support:
- Healthy circulation, keeping blood flowing through tired legs
- Lymphatic flow, helping reduce puffiness and swelling
- Reduced fluid retention, especially around calves and ankles
- Smoother-looking skin, softening the visible appearance of cellulite over time
- Lighter-feeling legs, especially valuable for women who stand all day
How to Wear Them
- Wear the leggings for 8 hours a day.
- As you move, the Tourmaline beads create a gentle micro-massage.
- Over 30 days, that consistent stimulation supports circulation and smoother-looking skin.
Your 30 Day Mass & Slim Plan
Week 1 to 2: Immediate shaping and smoothing. Many women say their legs already feel lighter, especially those on their feet all day.
Week 2 to 3: Skin may start to feel smoother. Some women notice less puffiness and swelling in the calves and ankles.
Week 3 to 4: Many report visible improvements in the appearance of cellulite and reductions in inches around the waist, hips, thighs, and calves.
Consistency is the key. The women who see the best results wear them daily.
Made for Women With Demanding Lives
Mass & Slim Leggings have become a quiet favorite for:
- Nurses and healthcare professionals on long shifts
- Busy moms juggling work, kids, and everything in between
- Women over 45 who want comfortable shaping that respects their body
- Professionals on their feet all day such as teachers, retail workers, stylists, and servers
- Women managing leg fatigue, swelling, varicose veins, or lymphedema concerns
The Mass & Slim Family. Choose What Works for Your Life.
Every Mass & Slim product is powered by the same embedded Tourmaline bead technology, supporting circulation, lymphatic flow, and the appearance of smoother skin. The difference is how you wear them and what they do underneath your outfit.
Mass & Slim Shapewear (Grey). Worn UNDER Your Clothes.
Soft, stretchy, breathable shapewear designed to be worn discreetly under your everyday outfits. More elasticity, more flexibility, and built for 8 to 12 hour wear at work, at home, or out. The grey collection enhances your silhouette by smoothing the stomach, lifting the buttocks, and softening the appearance of cellulite.
- Shapewear Leggings (you're here). Full-length shaping from waist to ankle, with added support for calves and lower legs. Best under pants, jeans, scrubs, and longer outfits.
- Shapewear Shorts. Shapes waist, hips, and upper thighs. Best under dresses, skirts, and shorter hemlines.
- Waist Shaper. Targeted waist and midsection support. Pairs with anything.
Mass & Slim Compression Leggings (Black). Worn ON THEIR OWN.
Fully opaque, squat-proof outerwear leggings with firmer compression than the grey shapewear. They feel a little more snug at first, then gradually stretch and mold to the shape of your body after a few wears, becoming extremely comfortable and personalized to your fit. Designed to be worn on their own at the gym, running errands, or out for the day. Shop Compression Leggings.
Shorts or Leggings? Why not both? Many women own both styles and rotate them depending on the outfit. Shorts under dresses and skirts, leggings under pants and scrubs for full-length support and a smoother look from waist to ankle.
Material and Care
Composition: 53% Polyamide, 33% Polyester, 14% Elastane.
Care: Machine washable and dryer safe. For longest wear, use a gentle cycle in cold water and dry on low heat.
Try Mass & Slim for 60 Days, Completely Risk-Free
Slip them on. Wear them under your scrubs, your favorite jeans, your work pants. Feel the difference in the first few hours, and see the difference over 30 days.
If you don't love how they feel, how they fit, or the results you see, return or exchange them within 60 days, no questions asked. Free size exchanges. Free returns.
✓ 60-Day Money-Back Guarantee · ✓ Free Size Exchanges · ✓ Trusted by Nurses and Moms Across the U.S.
Frequently Asked Questions
Size Chart and Fit Guide
One size chart for the entire Mass & Slim collection. True to women's U.S. sizing.
← Swipe to see full chart →
| Size | US Size | Hip | Waist | Height | Weight (approx.) |
|---|---|---|---|---|---|
| Small | 6 / 8 | 36 to 38" | 26 to 28" | 4'11" to 5'6" | 115 to 135 lbs |
| Medium | 10 / 12 | 39 to 41" | 29 to 31" | 5'2" to 5'8" | 135 to 160 lbs |
| Large | 14 / 16 | 42 to 44" | 32 to 34" | 5'4" to 6'0" | 160 to 185 lbs |
| Extra Large | 18 / 20 | 45 to 47" | 35 to 37" | 5'5" to 6'2" | 185 to 215 lbs |
Grey Shapewear (Shorts, Leggings, Waist Shaper): Order your true U.S. size. Size up only if you're between two sizes. For example, between Medium and Large, choose Large.
Black Compression Leggings (outerwear): These have firmer compression. Size up one full size from your usual U.S. size for the most comfortable fit. They will feel snug at first, then stretch and mold to your body shape after a few wears.
As you wear them, the fabric gradually stretches and molds to the natural shape of your body, becoming more comfortable over time, like a second skin.
Should I get the Shapewear Shorts or Shapewear Leggings?
Both use the same Tourmaline micro-massage technology and deliver the same core benefits. The right choice depends on your coverage needs:
- Choose Shorts for waist, hip, and upper-thigh shaping. Best under dresses, skirts, and shorter hemlines.
- Choose Leggings for full-leg shaping, calf and ankle support, and help with lower-leg swelling or fatigue. Best under pants, jeans, scrubs, and longer outfits.
Many women own both styles and rotate them depending on what they're wearing that day.
What's the difference between the grey shapewear and the black compression leggings?
Both use the same Tourmaline micro-massage technology. The difference is fabric and how you wear them:
- Grey Shapewear. Softer, more elastic, designed to be worn under clothing for all-day comfort. Smooths the stomach, lifts the buttocks, and softens the appearance of cellulite.
- Black Compression Leggings. Firmer compression, fully opaque, designed to be worn on their own as outerwear. They feel a little snug at first, then stretch and mold to the shape of your body after a few wears for a personalized, sculpted fit.
Can I wear them all day?
Yes. The breathable bamboo-viscose fabric is designed for extended wear and helps keep you cool throughout the day. Many customers wear the leggings 8 to 12 hours daily under jeans, dresses, scrubs, or work attire.
"So comfortable, you can even sleep in them."
Will they make me feel hot?
No. Mass & Slim Leggings are made with breathable bamboo-viscose cooling fabric designed to help regulate temperature and keep you comfortable during extended wear.
Will they show under my clothes?
No. The seamless, high-waisted design sits smoothly under clothing while shaping your waist, hips, thighs, and calves without adding bulk.
What if they don't fit?
We offer 60-day risk-free returns and free size exchanges. If your first pair isn't the right fit, we'll help you find the perfect size.
How do the Tourmaline beads work?
Tourmaline beads are embedded in the fabric. As you move, they create a gentle micro-massage that supports circulation, lymphatic flow, and the appearance of smoother skin over time.
How soon will I see results?
The shaping effect is immediate. For visible improvements in the appearance of cellulite, we recommend 8 hours a day for 30 days. Most women notice changes within 4 weeks.
Are these good for nurses, moms, and women over 45?
Yes. These are some of our most loyal customers. The combination of comfort, breathability, circulation support, and full-leg gentle shaping is specifically what women on their feet all day are looking for.
Ready to Feel the Difference?
Join thousands of women across the U.S. who've made Mass & Slim Leggings part of their everyday routine. Comfortable full-length shaping, real circulation support, and a sculpted silhouette from waist to ankle.
60-Day Money-Back Guarantee · Free Size Exchanges · Secure Checkout
Mass & Slim Shapewear Leggings
Top Quality Store on Google
Estimated delivery between May 29 and May 31.
Smooth, Shape, and Support from Waist to Ankle
Full-length anti-cellulite shapewear leggings designed for women with real schedules. Nurses, moms, professionals, and women over 45 who want a smoother silhouette and comfortable support from morning to night. Mass & Slim Leggings use embedded Tourmaline beads to gently support circulation and lymphatic flow while shaping your waist, hips, thighs, calves, and ankles.
- Smooths the appearance of cellulite from waist to ankle
- Shapes hips, thighs, calves, and lifts the buttocks
- Supports healthy circulation and lymphatic flow
- Helps reduce inches over time
- Breathable bamboo-viscose for 8 to 12 hour comfort
- Invisible under jeans, scrubs, dresses, and work pants
Most shapewear squeezes and compresses. Mass & Slim works with your body. The innovative fabric moves with you, offering instant shaping and visible improvements with consistent wear.
Why Women Over 45 Choose Mass & Slim Leggings
Full-Length Shaping from Waist to Ankle
The high-waisted, seamless design smooths your waistline while sculpting your hips, thighs, calves, and ankles. A sleek silhouette that works invisibly under clothing, all day long.
Comfortable Enough for a 12 Hour Shift
Unlike traditional shapewear that pinches and rolls, Mass & Slim Leggings move with your body. The breathable bamboo-viscose blend stays cool against the skin, doesn't roll down, and doesn't dig in, even after long hours on your feet.
Real Support for Tired, Heavy Legs
For women dealing with leg fatigue, swelling, varicose veins, or lymphatic concerns, the gentle full-length compression and Tourmaline micro-massage help calves and ankles feel lighter and more supported throughout the day.
Clinically Tested. Independently Verified.
In a 30-day third-party clinical study, participants who wore Mass & Slim 8 hours a day experienced:
Results based on a third-party clinical study. Individual results may vary.
How Tourmaline Micro-Massage Technology Works
Hundreds of small Tourmaline beads are embedded directly into the fabric. As you move throughout your day, the beads create a gentle, continuous micro-massage against the skin. That subtle stimulation helps support:
- Healthy circulation, keeping blood flowing through tired legs
- Lymphatic flow, helping reduce puffiness and swelling
- Reduced fluid retention, especially around calves and ankles
- Smoother-looking skin, softening the visible appearance of cellulite over time
- Lighter-feeling legs, especially valuable for women who stand all day
How to Wear Them
- Wear the leggings for 8 hours a day.
- As you move, the Tourmaline beads create a gentle micro-massage.
- Over 30 days, that consistent stimulation supports circulation and smoother-looking skin.
Your 30 Day Mass & Slim Plan
Week 1 to 2: Immediate shaping and smoothing. Many women say their legs already feel lighter, especially those on their feet all day.
Week 2 to 3: Skin may start to feel smoother. Some women notice less puffiness and swelling in the calves and ankles.
Week 3 to 4: Many report visible improvements in the appearance of cellulite and reductions in inches around the waist, hips, thighs, and calves.
Consistency is the key. The women who see the best results wear them daily.
Made for Women With Demanding Lives
Mass & Slim Leggings have become a quiet favorite for:
- Nurses and healthcare professionals on long shifts
- Busy moms juggling work, kids, and everything in between
- Women over 45 who want comfortable shaping that respects their body
- Professionals on their feet all day such as teachers, retail workers, stylists, and servers
- Women managing leg fatigue, swelling, varicose veins, or lymphedema concerns
The Mass & Slim Family. Choose What Works for Your Life.
Every Mass & Slim product is powered by the same embedded Tourmaline bead technology, supporting circulation, lymphatic flow, and the appearance of smoother skin. The difference is how you wear them and what they do underneath your outfit.
Mass & Slim Shapewear (Grey). Worn UNDER Your Clothes.
Soft, stretchy, breathable shapewear designed to be worn discreetly under your everyday outfits. More elasticity, more flexibility, and built for 8 to 12 hour wear at work, at home, or out. The grey collection enhances your silhouette by smoothing the stomach, lifting the buttocks, and softening the appearance of cellulite.
- Shapewear Leggings (you're here). Full-length shaping from waist to ankle, with added support for calves and lower legs. Best under pants, jeans, scrubs, and longer outfits.
- Shapewear Shorts. Shapes waist, hips, and upper thighs. Best under dresses, skirts, and shorter hemlines.
- Waist Shaper. Targeted waist and midsection support. Pairs with anything.
Mass & Slim Compression Leggings (Black). Worn ON THEIR OWN.
Fully opaque, squat-proof outerwear leggings with firmer compression than the grey shapewear. They feel a little more snug at first, then gradually stretch and mold to the shape of your body after a few wears, becoming extremely comfortable and personalized to your fit. Designed to be worn on their own at the gym, running errands, or out for the day. Shop Compression Leggings.
Shorts or Leggings? Why not both? Many women own both styles and rotate them depending on the outfit. Shorts under dresses and skirts, leggings under pants and scrubs for full-length support and a smoother look from waist to ankle.
Material and Care
Composition: 53% Polyamide, 33% Polyester, 14% Elastane.
Care: Machine washable and dryer safe. For longest wear, use a gentle cycle in cold water and dry on low heat.
Try Mass & Slim for 60 Days, Completely Risk-Free
Slip them on. Wear them under your scrubs, your favorite jeans, your work pants. Feel the difference in the first few hours, and see the difference over 30 days.
If you don't love how they feel, how they fit, or the results you see, return or exchange them within 60 days, no questions asked. Free size exchanges. Free returns.
✓ 60-Day Money-Back Guarantee · ✓ Free Size Exchanges · ✓ Trusted by Nurses and Moms Across the U.S.
Frequently Asked Questions
Size Chart and Fit Guide
One size chart for the entire Mass & Slim collection. True to women's U.S. sizing.
← Swipe to see full chart →
| Size | US Size | Hip | Waist | Height | Weight (approx.) |
|---|---|---|---|---|---|
| Small | 6 / 8 | 36 to 38" | 26 to 28" | 4'11" to 5'6" | 115 to 135 lbs |
| Medium | 10 / 12 | 39 to 41" | 29 to 31" | 5'2" to 5'8" | 135 to 160 lbs |
| Large | 14 / 16 | 42 to 44" | 32 to 34" | 5'4" to 6'0" | 160 to 185 lbs |
| Extra Large | 18 / 20 | 45 to 47" | 35 to 37" | 5'5" to 6'2" | 185 to 215 lbs |
Grey Shapewear (Shorts, Leggings, Waist Shaper): Order your true U.S. size. Size up only if you're between two sizes. For example, between Medium and Large, choose Large.
Black Compression Leggings (outerwear): These have firmer compression. Size up one full size from your usual U.S. size for the most comfortable fit. They will feel snug at first, then stretch and mold to your body shape after a few wears.
As you wear them, the fabric gradually stretches and molds to the natural shape of your body, becoming more comfortable over time, like a second skin.
Should I get the Shapewear Shorts or Shapewear Leggings?
Both use the same Tourmaline micro-massage technology and deliver the same core benefits. The right choice depends on your coverage needs:
- Choose Shorts for waist, hip, and upper-thigh shaping. Best under dresses, skirts, and shorter hemlines.
- Choose Leggings for full-leg shaping, calf and ankle support, and help with lower-leg swelling or fatigue. Best under pants, jeans, scrubs, and longer outfits.
Many women own both styles and rotate them depending on what they're wearing that day.
What's the difference between the grey shapewear and the black compression leggings?
Both use the same Tourmaline micro-massage technology. The difference is fabric and how you wear them:
- Grey Shapewear. Softer, more elastic, designed to be worn under clothing for all-day comfort. Smooths the stomach, lifts the buttocks, and softens the appearance of cellulite.
- Black Compression Leggings. Firmer compression, fully opaque, designed to be worn on their own as outerwear. They feel a little snug at first, then stretch and mold to the shape of your body after a few wears for a personalized, sculpted fit.
Can I wear them all day?
Yes. The breathable bamboo-viscose fabric is designed for extended wear and helps keep you cool throughout the day. Many customers wear the leggings 8 to 12 hours daily under jeans, dresses, scrubs, or work attire.
"So comfortable, you can even sleep in them."
Will they make me feel hot?
No. Mass & Slim Leggings are made with breathable bamboo-viscose cooling fabric designed to help regulate temperature and keep you comfortable during extended wear.
Will they show under my clothes?
No. The seamless, high-waisted design sits smoothly under clothing while shaping your waist, hips, thighs, and calves without adding bulk.
What if they don't fit?
We offer 60-day risk-free returns and free size exchanges. If your first pair isn't the right fit, we'll help you find the perfect size.
How do the Tourmaline beads work?
Tourmaline beads are embedded in the fabric. As you move, they create a gentle micro-massage that supports circulation, lymphatic flow, and the appearance of smoother skin over time.
How soon will I see results?
The shaping effect is immediate. For visible improvements in the appearance of cellulite, we recommend 8 hours a day for 30 days. Most women notice changes within 4 weeks.
Are these good for nurses, moms, and women over 45?
Yes. These are some of our most loyal customers. The combination of comfort, breathability, circulation support, and full-leg gentle shaping is specifically what women on their feet all day are looking for.
Ready to Feel the Difference?
Join thousands of women across the U.S. who've made Mass & Slim Leggings part of their everyday routine. Comfortable full-length shaping, real circulation support, and a sculpted silhouette from waist to ankle.
60-Day Money-Back Guarantee · Free Size Exchanges · Secure Checkout
Free 60 Day Return Policy!
FAQs
Tourmaline® beads create a massage effect that boosts blood and lymphatic circulation. The improved circulation helps to reduce cellulite and inches over time.
The Gray Mass & Slim Shapewear is designed to wear under clothes—true to U.S. sizing. Size up only if you’re between sizes.
The Black Mass & Slim Compression Leggings are outerwear with firmer compression, so we suggest sizing up one full size. Both lift, shape, and help improve circulation to reduce inches and cellulite over time.
Our products are clinically tested to show visible results within 30 days, with reductions of up to -3.2 cm in the hip area and -2.3 cm in the thighs. For best results, we recommend wearing the garment for 8 hours a day for 30 consecutive days, as per clinical studies.
Whether you're a nurse, new mom, or constantly on the go, Mass & Slim shapewear fits seamlessly into your routine, offering a lifting and shaping effect for a flattering silhouette.
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