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$82.00
  • A fitted leg that opens into a subtle bootcut hem
  • Short 27", Regular 29.5" and Tall 32" inseams
  • Choose your length with the shoes you plan to wear
  • Soft PureFlex made with 92% organic cotton and 8% spandex
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

Leggings and shorts lengths

Inseam is measured on the finished garment from the crotch seam to the hem. It's the same in every size, so you choose your size and your length separately.

Style Short Regular Tall
High Waist, Pocket, Mid-Rise, Sculpt and No-Front-Seam leggings 23" 25" 28"
Bootcut leggings 27" 29.5" 32"
Capri leggings 17"
High Waist and Pocket shorts 3" 5"

Which length for your height

A guide to where the hem lands, barefoot. Full length sits at the ankle; 7/8 sits just above it.

Your height Leggings (23" / 25" / 28") Bootcut
Up to 5'1" Short 23" for full length Short 27"
5'2"–5'4" Regular 25" for full length, or Short 23" as a 7/8 Regular 29.5"
5'5" Tall 28" for full length, or Regular 25" as a 7/8 Regular 29.5"
5'6"–5'9" Tall 28" for full length, or Regular 25" as a 7/8 Tall 32"
5'10" and up Tall 28" sits just above the ankle Tall 32"

Capri 17" is a mid-calf crop on most heights. Between two lengths? The longer one gathers slightly at the ankle; the shorter one sits as a 7/8.

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.

If you're between sizes, please size up for the best fit.

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.

How to measure

Bust: around the fullest part of your chest, with the tape flat but not tight.

Waist: around your natural waist, where you usually wear your pants. Relax and leave about 1/4 inch of slack.

Hips: around the widest part of your hips and seat, usually about 2 inches below your hip bones.

Inside leg: from your crotch straight down to where you want the hem, barefoot. Compare it with the inseams above.

Color:Black
Inseam:
Free 30-Day Returns & Exchanges

Wear Better. Save More. 15% off 2 • 20% off 3 • 25% off 4+
Discounts apply automatically in your cart.

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$82.00

Customer Reviews

Overall rating: 4.2 / 5 from 67 reviews.

These leggings are comfy and fit perfectly. Love the way they hold their shape throughout the day. I have worn them twice (without washing) and they are still comfy and snug. Other cotton leggings seem to lose the snug fit after all day wear. These do not! Love them!

PureFlex Organic Cotton Bootcut Leggings

I wanted cotton leggings that are ethically made. These are great! Good fabric feel, and the bootcut especially is long enough for me at 5’10”.

PureFlex Organic Cotton Bootcut Leggings

I love the leggings. They are soft and so comfortable. Unfortunately, it's been so hot here. I haven't been able to wear them for longer than trying them on, though. I am looking forward to wearing these and being comfortable all day. When it gets warmer. I love most of all that they are organic cotton and breathable. It has been difficult to find clothing that is not made of Plastic. And I can honestly say that this is one of the best companies, because they are really comfortable, and they look nice too.

PureFlex Organic Cotton Bootcut Leggings

Very comfortable and great support. I am a small frame with a large bust size. I love how the tanks fit and support me. Exceeded expectations and none of the other leading brands work for me. Also they hold up very well after washing.

PureFlex Organic Cotton Bootcut Leggings

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

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