New favorite tight
"I ordered the black tights with the core support and normal back and they fit so well. I’m 5’4 148 lbs and the mediums fit great. They are nice and thick and hold up during workouts. Will definitely order another pair."
The Trimline ⅞ Legging with our Core Support waistband. A wider, firmer band that holds through the core and smooths the hip line. Same Trimline fabric, more structure where you want it.
Why you'll love it:
Composition
75% CiCLO® nylon · 25% spandex
Care
Machine wash cold, tumble dry low
Built on CiCLO® biodegradable fiber.
CiCLO® is built into our recycled synthetics to do two things: shed fewer microplastics in wear and wash, and biodegrade rather than linger. Independent testing shows CiCLO treated fibers biodegrade in under four years — so they don’t add to long-term microplastic pollution.
Certified by ECO PASSPORT by OEKO-TEX®.
| Sizing | Numeric Size | Waist (inches) |
|---|---|---|
| XS | 0–2 | 24–26 |
| S | 4–6 | 26–28 |
| M | 8–10 | 28½–30½ |
| L | 12–14 | 31–33 |
| XL | 16–18 | 33½–36 |
Measured flat and unstretched. Consistent across all sizes and waistband styles.
| Style | Inseam | Front Waistband Height |
|---|---|---|
| ⅞ Legging | 24⅝" | 4" |
| Capri | 19⅛" | 4" |
Waist measurements above are body measurements. Inseam runs from the crotch seam to the hem.
Choose your waistband
Natural Waist
4″ high rise in Trimline fabric, double-folded. Softer support that moves with you.
Shop Natural Waist
Core Support
4″ high rise in Trimline fabric, folded and bonded inside. A firmer, “tucked-in” feel.
You’re viewing this waistband
V-Band Core Support
4″ high rise in Trimline fabric, folded and bonded inside, contoured to a V in the back. A firmer, “tucked-in” feel.
Shop V-Band Core Support
What's In Your Legging
Feel
Buttery soft, moderate compression
Wear
Gym, running, yoga, HIIT, cycling
Fabric
Advanced performance fiber
Technology
CiCLO® biodegradable
Tested
Third party verified
Built to move with you — and tested to prove it. CiCLO® advanced fibers delivers the compression and recovery you expect, independently tested free from PFAS | BPA and screened for 100+ chemicals, many of which most activewear brands don't test for. Performance you can feel. Safety you can verify.
Independently tested by a third party lab. Every finished product. Results available upon request. Learn more about our fabric →
Overall rating: 4.7243733 / 5 from 439 reviews.
The Trimline 7/8 Legging is praised for its flattering fit, rich colors, and high-quality fabric. Customers appreciate the mid-compression support and the sleek design, though some find the waistband frustrating. The leggings are also noted for their perfect length and squat-proof guarantee.
Review topics: ["size","fit","color","issues","feel","length","shape","shipping","look","fabric","material","pants","quality","weight","comfort","pair","style","stretch","pockets","leggings","waist","customer service","band","legging","performance","plastic","build","compression","waistband","rise"].
"I ordered the black tights with the core support and normal back and they fit so well. I’m 5’4 148 lbs and the mediums fit great. They are nice and thick and hold up during workouts. Will definitely order another pair."
"I am a new fan. I’m going to buy more for my daughter and sister. These leggings are so well-made. I love the waistband and I was doubting the quality without the forever chemicals, but I am so impressed with the product. I can’t wait to order more."
"really wanted these to work but the waistband is a strangely stiff material that feels like cardboard wrapped in fabric. Luckily they now offer a new waistband option so I'm going to try that out because I love the company's ethos and the rest of the material and fit of these leggings!"
"I’m so happy I bought these! I’d been looking for workout pants that didn’t contain bad chemicals and that actually held up during workouts and these are them! I was a little nervous by how stiff the top band seemed to be when I first opened them but they are really comfortable and don’t move or roll down during workouts, even during hiit workouts. So impressed! I’m 5’8, 150lbs, athletic build and I got a medium. I’ll be getting another pair soon!"
"This was my first time trying Definite Articles - and I’ll definitely be buying more. The set I bought is great quality, fits well, and is so comfortable. And I LOVE that they company pays attention to what goes into the clothing brand to make it healthy and safe to wear."
"These leggings fit like a glove! They don’t roll or slide down. And they are super black, which I appreciate. They wash great, too."
"Flattering shape and color. Grateful the clothing is non toxic."
"I got a size small, and I'm 5'4" and 139. The contour, stretch, comfort and look is the best of all the non toxic brands I've tried. I can't wait to order more after I see how it washes!"
"Love the fit. They are honestly awesome. Why 4 starts? Wish they were clean certified. Was a bit nervous wearing without the peace of mind guarantee."
"I’ve tried two other organic/ non toxic leggings and have not like the feel or fit of them. These give you the feel of the athletic wear you love without the harmful chemicals. Im a fan!!"
Core Support — Internal bonding delivers a firmer, smoothing hold through the waist.