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Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings
Sontivia Organic Stretch Leggings

4.8/5 based on 4,532 happy customers

Sontivia Organic Stretch Legging

+FREE sports bra

Squat-proof - never see through

Made of plants, not plastic

No forever chemicals, no BPA

Won't bag out or thin
Color
Size

90-Day Money Back Guarantee

Small Business in US

Free Shipping

Loved By Thousands

Description

  • 92% organic cotton, 4% TENCEL™ lyocell & 4% ROICA™ recycled elastane — legging + matching bra
  • Organic cotton from GOTS-certified sources
  • OEKO-TEX® Standard 100 certified fabrics & dyes
  • Our fabrics are 3rd party tested BPA, PFAS and phthalate free.
  • Knit at 240 GSM with a gusseted, no-front-seam construction - so it stays fully opaque in a deep squat, not just standing still.

Enough sweating into plastic five days a week. Switch to the Sontivia Set — made of plants, and built dense enough to bend over in.

 

Guaranteed to be the last legging you ever squat-check in the mirror.

Size Chart

Please note that we provide Free Exchanges (including the free return label).

 

The Core Legging — body measurements (inches), waist / hip / US size:

XS — waist 25.5–26.5", hip 34.5–35.5", US 0–2

S — waist 27.5–28.5", hip 36.5–37.5", US 4–6

M — waist 29.5–30.5", hip 38.5–39.5", US 8–10

L — waist 32.5–33.5", hip 41.5–42.5", US 12–14

XL — waist 35.5–36.5", hip 44.5–45.5", US 16–18

2XL — waist 38.5–39.5", hip 47.5–48.5", US 20

 

The Scoop Bra — body measurements (inches), bust / waist / hip / US size:

XS — bust 32.25–33.25", waist 25.5–26.5", hip 34.5–35.5", US 0–2

S — bust 34.25–35.25", waist 27.5–28.5", hip 36.5–37.5", US 4–6

M — bust 36.35–37.25", waist 29.5–30.5", hip 38.5–39.5", US 8–10

L — bust 39.25–40.25", waist 32.5–33.5", hip 41.5–42.5", US 12–14

XL — bust 42.25–43.25", waist 35.5–36.5", hip 44.5–45.5", US 16–18

2XL — bust 45.25–46.25", waist 38.5–39.5", hip 47.5–48.5", US 20

 

Our model is 5'8" and wears a size M.

Materials & Care

Legging: 92% organic cotton, 4% TENCEL™ lyocell, 4% ROICA™ recycled elastane

 

Bra: 92% organic cotton, 4% TENCEL™ lyocell, 4% ROICA™ recycled elastane

 

Care Instructions: Machine wash cold, inside out, on the gentlest setting available. Gentle washing protects the density and recovery that keep it opaque.

 

Lay flat to dry. Do not tumble dry.

 

Wash only when needed - TENCEL™ lyocell breathes and wicks moisture, so it airs out easily between wears and lasts for years!

90 Day Guarantee

Not the right fit? We offer free size exchanges.

 

If you don't love it, return it in 90 days for a full refund.

96% Plants

No Front Seam

GOTS Organic Cotton

240 GSM — Twice As Thick

Cool & Breathable

THE PROBLEM

what's so bad about plastic in leggings?

Your leggings aren't fabric. They're plastic - polyester, nylon, elastane.

 

And you wear them the worst way possible: skin-tight, hot, and soaked in sweat.

 

Here's what that does.

 

Every squat and stretch grinds microscopic plastic fibers loose. Your sweat acts like a solvent, dissolving the chemical additives out of the plastic — BPA, the stuff linked to your hormones. And hot, sweaty skin? It absorbs far more than dry skin does. So it soaks straight in.

 

For the sweatiest hour of your day, you're pressing plastic into your bloodstream.

 

They've already found microplastics in blood, in placentas, in breast milk.

 

And most "plastic-free" brands? They still rub stretchy plastic right against your skin.

 

But what if the small % of necessary stretch sat on the outside - never touching you at all?

THE SOLUTION

Meet The Only Legging That's Cotton, Not Plastic

Polyester sheds tiny bits of plastic as you sweat and move. Ours is 96% organic plants, so it doesn't. Here's what changes.

No plastic on your skin. It's 96% plants, so you're not rubbing plastic into your skin every time you sweat.

The stretch stays off your skin. Plant fiber on the inside, the 4% stretch - outside, never touching you.

No more see-throughs. Deep squats, big stretches, the front row of class — nothing ever shows through.

Nothing nasty inside. Tested for PFAS and BPA. None found. No mystery chemicals, no chemical smell.

Gentle on your skin. Soft plant fiber and smooth seams — kind even to skin that reacts to everything.

How Sontivia OutLock™ Works

Most leggings blend the plastic stretch fiber right through the yarn — so it touches your skin everywhere. OutLock™ keeps it on the outside instead.

We'll keep it simple.

A legging needs a little stretch to move with you and spring back. Most brands spin that plastic straight through the yarn — so it sits against your skin the whole workout. We build ours in two faces. The inner side that touches you is pure plant — organic cotton and TENCEL. The stretch is locked to the outer face, doing its job from the outside. Same snap-back, same stay-put. But the side against your skin stays 96% plant, not plastic.

what happens once the plastic's gone

Don't take our word for it. Hear from women who switched - and never looked back at their old drawer.

Sontivia vs. What's in your Drawer right now

The Sontivia Set

"Clean" cotton brands

Regular gym leggings

Made from organic plants

Opaque in deep squat

No hidden spandex

Lab-tested, PFAS-free

Ethically & fairly sourced

Won't bag out or thin

You got Questions
We Got Answers

Everything you're wondering, before you switch.

Are they actually plastic-free?

The part against your skin is 100% plant — soft organic cotton and TENCEL, no plastic where it touches you. Outside, we blended in 4% recycled stretch so they move with you and spring back instead of bagging out. Every gram's named right on the label.

Will they be see-through when I bend over?

No. They're knit at 240 GSM — nearly twice as thick as most cotton leggings — with no front seam. We filmed the deep-squat test in our lightest color and nothing shows. If a pair is ever sheer, we'll replace it free.

Do they run small? What size should I get?

They fit true to size — order your usual size, no sizing up. Here's a full size chart with real measurements:

 

The Core Legging — body measurements (inches), waist / hip / US size:

XS — waist 25.5–26.5", hip 34.5–35.5", US 0–2

S — waist 27.5–28.5", hip 36.5–37.5", US 4–6

M — waist 29.5–30.5", hip 38.5–39.5", US 8–10

L — waist 32.5–33.5", hip 41.5–42.5", US 12–14

XL — waist 35.5–36.5", hip 44.5–45.5", US 16–18

2XL — waist 38.5–39.5", hip 47.5–48.5", US 20

 

The Scoop Bra — body measurements (inches), bust / waist / hip / US size:

XS — bust 32.25–33.25", waist 25.5–26.5", hip 34.5–35.5", US 0–2

S — bust 34.25–35.25", waist 27.5–28.5", hip 36.5–37.5", US 4–6

M — bust 36.35–37.25", waist 29.5–30.5", hip 38.5–39.5", US 8–10

L — bust 39.25–40.25", waist 32.5–33.5", hip 41.5–42.5", US 12–14

XL — bust 42.25–43.25", waist 35.5–36.5", hip 44.5–45.5", US 16–18

2XL — bust 45.25–46.25", waist 38.5–39.5", hip 47.5–48.5", US 20

 

And if you land between sizes, exchanges are always free.

Won't cotton get all sweaty and hold odor?

The TENCEL in the blend breathes and moves moisture, so they air out easily between wears. Cotton isn't magic — but it beats sweating into hot plastic, and there's no chemical smell like synthetics have.

Will they last, or thin out like other cotton leggings?

That's the whole point of the thick 240 GSM knit — it holds its shape instead of bagging out or going thin. Wash cold and air-dry (skip the dryer) and they'll stay opaque for years.

Is the microplastics thing actually real?

The proven parts are: synthetic fabrics shed microplastics, those particles show up in human tissue, and additives can absorb through sweaty skin. That's why organtic cotton & plants are a way safer bet.

Is the Set worth the price?

You'll wear these more hours than almost anything you own, against your most absorptive skin. Priced per wear it's tiny — and they're built to last years, not land in the bin after three months. Cheap leggings cost more twice.

What if they don't work for me?

Then you don't pay. You've got 90 days. Wear them, wash them, squat in them in the mirror. If they're ever see-through, saggy, or just not right, we'll exchange them or refund you fully. The risk is ours.

OUR 90-DAY CLEAN-FABRIC GUARANTEE

If you're not fully convinced these are the cleanest leggings you've worn within 90 days, you pay nothing.

 

No hoops. No hassle. Just a full refund — no questions asked. We're confident enough in 96% plants, third-party lab-tested and named to the gram, that we take on all the risk, so you don't have to.

Plastics out. Smile's in.

4.8/5 based on 4,532 happy customers

4.8/5 based on 4,532 happy customers