Skip to content

Wear Better. Save More. 15% off 2 items • 20% off 3 • 25% off 4+

Cart

Your cart is empty

PureFlex Organic Cotton Bootcut Leggings

Sale price$78.00
  • 92% buttery-soft organic cotton and 8% spandex
  • High waist that stays in place through movement
  • Garment dyed and pre-shrunk, so the fit holds wash after wash
Size:
Sizing Chart

Measurements

All measurements are body measurements, in inches.

Size Bust Waist Hips
XS (0-2) 30-32 24-26 34-36
Small (2-4) 32-34 26-28 36-38
Medium (6-8) 34-36 28-30 38-40
Large (10-12) 36-38 30-32 40-42
XL (14-16) 39-40 32-34 42-44
XXL (18-20) 41-43 35-37 45-47

How to choose your size

Most styles run true to size. PureFlex and Pure are garment dyed and pre-shrunk, so choose the size you normally wear.

Between sizes? Take the larger one. Sizing down puts more tension across the seat, which reduces opacity in a deep squat.

Need a different length? Change the inseam, not the size. Leggings come in three inseams and shorts in two, so a shorter inseam at your true size will fit better than a smaller size.

Shorts: check the measurements at your hip rather than the size you usually wear in shorts.

Bras and tops: your usual size for a secure fit, or size up if you prefer less compression.

Pure Lightweight Joggers: these fit closer than the name suggests. If you want a relaxed fit, size up.

Texas-Grown and EcoLuxe styles: use the measurements on the chart above.

Still deciding between two sizes? Email hello@purakai.com and we will help.

PuraKai size guide chart with bust, waist, hip and inseam measurements for sizes XS through XXL
Color:Black
Inseam:
Free 30-Day Returns & Exchanges

Wear Better. Save More. 15% off 2 • 20% off 3 • 25% off 4+
Discounts apply automatically at checkout.

Alexandra D.Verified
1/5
4/7/2026
I absolutely love this style of leggings! I'm 5-foot-8 and the tall fit worked great for me.
Karen S.Verified
2/5
3/23/2026
These pants fit so nice for a tall, bigger gal like me. I like them so much I bought a second pair.
Christy C.Verified
3/5
1/6/2026
I was so excited these pants came in long and also bootcut (my favorite)!!!! They are so comfortable and I absolutely will be purchasing more!
Chris D.Verified
4/5
2/18/2026
Love the wide waistband and cotton pants. Very comfortable!
Kyobi H.Verified
5/5
1/9/2026
Wow, absolutely amazing leggings. Have multiple pairs, and love all of them!
PureFlex Organic Cotton Bootcut Leggings - Black
PureFlex Organic Cotton Bootcut Leggings Sale price$78.00
Independently tested for PFAS by Applied Technical Services, an independent testing laboratory: no PFAS detected, with total fluorine below 2 parts per million (October 2024).

Tested and Trusted

We had our bestselling leggings independently tested for PFAS by Applied Technical Services. Total fluorine, the limiting marker for the entire PFAS class, came back none detected at below 2 parts per million.

The report covers the main fabric of our organic cotton leggings, tested in October 2024, against a current industry threshold of 100 ppm. We publish the result rather than a blanket claim.

Why go the extra mile? PFAS are synthetic chemicals used to make fabrics stain and water-resistant, but they’re also known as “forever chemicals” because they persist in the environment and accumulate in our bodies. With PFAS linked to health risks, we made it our goal to guarantee skin-friendly comfort that eases your body and mind.

We use no DWR coatings and no fluorinated finishes anywhere in our line.

Frequently Asked Questions

Recently viewed

Customer Reviews

Overall rating: 4.2 / 5 from 50 reviews.

Kicking myself for not getting these sooner!! They're so comfy, breathable, and flattering. I love that they're cotton and that I'm supporting a small, family owned business

PureFlex Organic Cotton Bootcut Leggings

I was thrilled with the short ~ no hemming needed, and I am so thankful for a breathable fabric. I ordered the boot cut and will be ordering again!

PureFlex Organic Cotton Bootcut Leggings

I absolutely love this style of leggings! I'm 5'8" and the tall fit worked great for me. If anyone remembers the Hard Tail style flare legging, these are replacing that nostalgic style for me :)

Ecoflex 2.0 Organic Cotton Bootcut Leggings

Customer video review of Ecoflex 2.0 Organic Cotton Bootcut Leggings

I would buy these pants in a million colors if they offered it. Ticks all my boxes as a picky, short girl. 1) organic cotton, a must. no more room for toxic plastic leeching. 2) varying inseam sizes, I'm 5ft tall and it's always a disaster trying to find pants i'm not stepping on (i got 25" and it's PERFECT). 3) the waistband width is a DREAM, no cutting into tummy rolls, just enough support but not where I'm suffocating from compression 4) BUTTERY SOFT material 5) great customer service

Ecoflex 2.0 Organic Cotton Bootcut Leggings

Purchased this for my girlfriend for Christmas and she absolutely loved it. We highly recommend the leggings, shorts, and tops and will definitely be reordering. We really appreciate that everything is GOTS and third party tested. The bundle deals were great, the fabric quality is excellent, and the fit is spot on. Overall a great experience and we highly recommend this company.

Ecoflex 2.0 Organic Cotton Bootcut Leggings

Customer video review of Ecoflex 2.0 Organic Cotton Bootcut Leggings

Very cute and comfortable boot leggings! My main driver was the non-toxic labeling of the company, especially as we sweat while working out. Love that it’s cotton. It is thin material but able to workout in. I’m hopeful it’ll hold up. The style and cut is very flattering. The top is also PuraKai - one of my now favorite tops for working out and walking. It’s also thin, but works well and is nice. The materials of the clothing is hand wash and air dry. Also, they are very responsive and genuine when you email, so I definitely support them!

Ecoflex 2.0 Organic Cotton Bootcut Leggings

I was so excited these pants came in long and also bootcut (my favorite)!!!! They are so comfortable and I absolutely will be purchasing more !!!❤️

Ecoflex 2.0 Organic Cotton Bootcut Leggings

The pants are a bit snug around thighs but otherwise fit well. Delivery took awhile but I understand that the item was being manufactured when I ordered.

PureFlex Organic Cotton Bootcut Leggings

Customer service is great. I love the fit of the leggings, and the material. However you could do away with the front seam and the weird rise on the waist. I was under the impression that these were normal high rise from the photos on the website, but the ride comes all the way up past your ribs with the option to Foldover the waist. I decided to keep these because the pros outweighed the cons, and this is a small business, which I like to support. Please take in consideration making a shorter rise that you don’t have to Foldover, and taking the front inseam out

Ecoflex 2.0 Organic Cotton Bootcut Leggings

Store owner replied: Hi Rylee - As a small family business, we are grateful for your support and understanding. We make a mid-rise legging, and we plan to do a bootcut version in 2026. https://purakai.com/products/organic-cotton-mid-rise-leggings Would this style be better? Please email us at hello@purakai.com with your feedback.

The fit is good. The waist band fits nicely. The bootcut cut is good. Fitted through thigh and flare just enough. As these are the 2.0 bootleg, I thought that they might be a little thicker so they're not see-thru, BUT alas they are completely see-thru ... making these too expensive for a generic cotton bootleg legging. Comfy but not worth it for me. I am 5'4", 33" waist, 41" hips, I ordered the large. The fit was perfect. I'm a petite, curvy, athletic build. I normally wear a small in Athleta leggings. In retrospect, I wish I ordered the longer length. I ordered the regular, which is 29.5", barely long enough to look flattering. A little longer would give me a better proportion and look slimmer. Sometimes I like to wear my bootcut leggings with my platform sneakers but can't with these. Also, I dance, and these are too short to wear with my dancing heels.

Ecoflex 2.0 Organic Cotton Bootcut Leggings

I do love the fabric, feel snd and style but they’re small on me. They end up short because of my size 5’8 200lbs. Just a slightly more generous amount of fabric would have been 100% perfect. I just saw you have xxl so next time.

Ecoflex 2.0 Organic Cotton Bootcut Leggings

Love that these are organic cotton. I sized up to get a more comfortable, less compressive fit - but even doing so, these were super tight. Not what I was hoping for, so I returned them. In my opinion, these run 1-2 sizes small.

Ecoflex 2.0 Organic Cotton Bootcut Leggings

They're too long even though I ordered the petite. And they smell moldy. I'm hoping that if I wash them two or three times before wearing them it will go away.

Ecoflex 2.0 Organic Cotton Bootcut Leggings