The Riverline Racerback Bra sculpts and flatters in one clean line, with 360° stretch and medium support that stays comfortable from first rep to last. A natural fit, without padding or cups.
Why you'll love it:
73% Ciclo Nylon, 27% 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 | Bust (inches) |
|---|---|
| X-Small | 28–30 |
| Small | 30–32 |
| Medium | 32–34 |
| Large | 35–37 |
| X-Large | 38–40 |
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: 4.7887325 / 5 from 355 reviews.
The Riverline Racerback Bra is praised for its super soft and comfortable material, perfect fit, and great support. Customers also appreciate its high-quality fabric and excellent style, all without harmful chemicals.
Review topics: [size, fit, feel, shipping, color, look, quality, leggings, fabric, material, stretch, pants, style, weight, design, pair, padding, band, cut, bra, coverage, comfy, customer service, support, compression, chemicals, clothing, workout, brand, racer].
"The material is very unique, but super soft and stretchy. The colors are gorgeous and I love that they have the logo on the back on the sports bra. Highly recommend these for everyday training and sports! I will be repurchasing!"
"Two reviews: the sports bra is the most comfortable I have worn!! As an avid runner I am looking for something that will provide enough support but not suffocate me. Also, the customer service was exceptional. My package got lost and they sent me a new one right away. I will definitely be ordering more colors soon."
"I was pleasantly surprised with this bra. I usually look for high neck bras to keep everything in place. However, this bra has exceptional hold and I wasn't scared that I would have any surprises during yoga class or in high intensity workouts. For context, I am 36C."
"On the first day I wore this set to the gym, I got so many compliments! I wish they were a little longer. I am 5'9" with a bigger booty, and I have to hike them up a bit, but I do with most leggings. I will be ordering again."
"Love the fit and color of this sports bra. I wear between a small and a medium and the medium fit perfectly. My only complaint is that the racer back strap is a little high on the back of my neck. It’s still very comfortable but I prefer it to hit a little lower. Overall- excellent!"
"This is a lovely, no-fuss, high quality sports bra that washes well (I use dryer sometimes and also hang dry it). I purchased another one in a different color. Just the right amount of compression. I like that there are not removable pads, which never seem to wash well."
"I’ve been slowly changing out my workout clothes to brands made without forever chemicals. That’s how I found Definite Articles. I love them! The shorts are soft and stay put. This sports bra is my favorite. It’s also soft and breathable. I live in Hawaii and train in the heat and humidity so breathability is a big deal. I’m so glad I found this brand. I’m going to order two more of this product right now!"
"Super comfy and lovely fit. Great support. I’m a 36 D and it feels really comfortable. I ordered a large but am losing some weight so went back and ordered a medium too. Love this. Will get lots more"
"Smooth, supportive and safe! After extensive research, this has been by far the best purchase I’ve made in terms of non-tox activewear!"
"Great bra, feels like I have nothing on and I like that it's free of chemicals. I'm very small chested and the XS fits perfect and doesn't totally flatten me out like other sports bras I've tried"
