Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures, running and the gym. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement.
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t
Image shows a woman wearing BRANWYN's Compressive Racerback Sports Bra, a compression sports bra designed for high-impact adventures. This compressive, body-hugging sports bra features an updated racerback and shoulder strap design for a more inclusive fit, ensuring maximum comfort and freedom of movement. Made from a heavy-weight 4-way Merino knit with a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, it provides breathable, sustainable support. BPA, PFAS, and forever-chemical free, t

Essential Racerback Sports Bra

Sale price$63.75 USD Regular price$75.00 USD
15% Off

Color:Black
Size:XS
Quantity:
In Stock


Racerback Sports Bra Size Guide

All our knitwear can stretch up to 30%, so you might be able to wear two different sizes. If you are in-between sizes or unsure, we recommend sizing up.

Scroll right to view the entire size chart.

A/B C D DD F G
<30 XS XS XS XS S S
31-32 S S S S M M
33-34 M M M M L L
35-36 L L L L XL XL
37-38 XL XL XL XL XXL XXL
39-41 XXL XXL XXL XXL XXL XXL

Tell me more about the fit:

Our Essential Racerback Bra is meant to fit snugly on the body. To find the correct size, start by fitting the band. Our size chart is based on our field testers' ability to fit two fingers between the body and the band but not more.

To determine the band size:

Measure snugly around your rib-cage, directly under your breasts. Add 3 inches to this measurement. For example, if your rib-cage is 31 inches, your band size is 34. If your result is an odd number, go UP to the next band size. For example, if your rib cage is 32 inches, 32+3=35, round 35 up to a 36 band size.

Our Performance Innerwear is meant to fit snugly on the body. If you prefer a looser fit, we recommend sizing up. If it feels just a little tight and you aren't sure if the next size up would be better, we recommend wearing and washing it a few times to see if it breaks in to your liking before exchanging it for another size.

Will it stretch out?

Our Performance Innerwear will give and relax with a bit with wear and wash. Many women find that it molds to your body over time. 

Racerback Sports Bra Size Guide

All our knitwear can stretch up to 30%, so you might be able to wear two different sizes. If you are in-between sizes or unsure, we recommend sizing up.

Scroll right to view the entire size chart.

A/B C D DD F G
<30 XS XS XS XS S S
31-32 S S S S M M
33-34 M M M M L L
35-36 L L L L XL XL
37-38 XL XL XL XL XXL XXL
39-41 XXL XXL XXL XXL XXL XXL

Tell me more about the fit:

Our Essential Racerback Bra is meant to fit snugly on the body. To find the correct size, start by fitting the band. Our size chart is based on our field testers' ability to fit two fingers between the body and the band but not more.

To determine the band size:

Measure snugly around your rib-cage, directly under your breasts. Add 3 inches to this measurement. For example, if your rib-cage is 31 inches, your band size is 34. If your result is an odd number, go UP to the next band size. For example, if your rib cage is 32 inches, 32+3=35, round 35 up to a 36 band size.

Our Performance Innerwear is meant to fit snugly on the body. If you prefer a looser fit, we recommend sizing up. If it feels just a little tight and you aren't sure if the next size up would be better, we recommend wearing and washing it a few times to see if it breaks in to your liking before exchanging it for another size.

Will it stretch out?

Our Performance Innerwear will give and relax with a bit with wear and wash. Many women find that it molds to your body over time. 

Our updated Racerback features a new neck and shoulder strap design to offer a more inclusive fit, ensuring unparalleled comfort and freedom of movement.

Built with body hugging, compressive, seamless support for your higher impact adventures, our Essential Racerback Sports Bra is perfect for miles on the trails, laps on the single track, sending your boulder project, or your next HIIT session.

Made to go the distance, the Racerback's heavy-weight 4-way knit, hustles as hard as you. The integrated shoulder strap and racerback design maximizes mobility and movement. Our updated version moves the straps away from your neck and off your traps to fit squarely on your shoulder for maximum comfort.

The result: you stay fully supported, fresh and funk free even during your most grueling workouts and epic adventures.

Made from naturally sustainable Merino, it's BPA, PFAs, and forever chemical free (unlike, ahem, other bras on the market) and featuring our POWRspun knit blend of 76% extra fine Merino, 14% nylon, and 10% elastane, an industry first.

  • built with higher compression and heavier material than our Bralette and Busty Bras
  • body-mapped contours provide additional support and separation
  • sleeves for removable bra pads (pads not included)
  • pullover style with a racerback design for full range of motion

Bonus: Our ZQ, OEKO-TEX 100, and RWS certified Merino is also regenerative and sustainable.

Double Bonus: We hear it all the time… Our Racerback Sports Bra is the high-five you need to crush your next PR.

PERFORMANCE WITHOUT COMPROMISE

Designed for superior performance and maximum comfort—it all starts with Merino wool. Super-soft, ultra-fine Merino wicks sweat to keep you dry, fresh, and funk-free. The natural crimp of its fiber traps air so you stay cool when things heat up and keep warm when there’s a chill.

Moisture wicking

Naturally breathable

Temperature regulating

Odor Resistant

BUTTERY SOFT NATURAL FIBER

GYNECOLOGIST APPROVED

Customer Reviews

Based on 273 reviews
71%
(195)
23%
(62)
4%
(10)
1%
(2)
1%
(4)
C
Carly (Asheville, US)
Checks All the Boxes

I was afraid I was going to have to give up style and good "boob shape" to get a healthy non-plastic bra. Nope, Branwyn has fixed that. This bra is perfect in all of the ways. I'm switching out all of my polyester for natural fibers and if feels so good.

K
Kristin Samuelson (Phoenix, US)
Great low-impact sports bra!

I have tried several natural fiber bras for Pilates and this is the absolute best! It’s soft, comfortable, well-made, and provides just the right amount of support for activities like Pilates or yoga. I’ve already ordered another and will be coming back for more!

K
Kara L. (Philadelphia, US)
Hardy

This is a thicker and heavier bra, as you would expect as a sports bra. It isn’t quite as forget-its-on comfortable as the regular Branwyn bra, but again, not surprisingly. I’m not one to make use of the sleeves for adding bra pads, so I could do without that feature and thus some of the weight. All together though this bra does hold my 38DDs snuggly which makes exercise more comfortable and will likely benefit my travel wardrobe considerably given the characteristics of merino, even in a blend like this to provide the necessary support.

A
AK (Atlanta, US)
to tight on the shoulders

it seems to be made for short torsos, not stretchy, and not adjustable, I couldn't wear it because it was digging into my shoulders. I was so looking forward to wearing it, what is a disappointment.

E
Erica

Soft, comfortable, lovely fabric.

MONEY BACK GUARANTEE FOR 14 DAYS

Not sure about wool?

Merino is super soft like cashmere!

We know you'll love it! But just in case you don't, we’ll give you a full refund.