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It’s Official: Your Innerwear Is BPA- and PFAS-Free - BRANWYN | Performance Innerwear
Health and Wellness

It’s Official: Your Innerwear Is (Still) BPA- and PFAS-Free

We couldn't be prouder to be forever chemical-free.
What Makes Wool an Active Fiber? - BRANWYN | Performance Innerwear
Gear Guide

What Makes Wool an Active Fiber?

Merino wool is one of the only fibers designed by nature to adaptively respond to our bodies in motion. Here’s exactly what that means.
What We Talk About When We Talk About Biodiversity - BRANWYN | Performance Innerwear
Sustainable Living

What We Talk About When We Talk About Biodiversity

From oak trees to city gardens, biodiversity shapes our lives—and our future.  
Behind the Seams: How a Sustainable Compression Legging Comes to Life - BRANWYN | Performance Innerwear
Gear Guide

Behind the Seams: How a Sustainable Compression Legging Comes to Life

From concept to creation, our latest blog takes you behind the seams of our Compressive Merino Leggings—revealing the thoughtful design, rigorous testing, and innovative craftsmanship that brought ...
Your Guide to Dream-Setting - BRANWYN | Performance Innerwear
Empowerment

Your Guide to Dream-Setting

Create a year filled with purpose, adventure, and growth.  
The Next-Level Benefits of Seamless Merino - BRANWYN | Performance Innerwear
Gear Guide

The Next-Level Benefits of Seamless Merino

What is seamless Merino and why does it feel so dang good? 
How to Make the Switch to Natural Fibers - BRANWYN | Performance Innerwear
Gear Guide

How to Make the Switch to Natural Fibers

Transitioning to natural fibers isn't just good for the planet, it's better for your body , too. Here's how to make the switch
5 Major Benefits of Investing in Your Underwear - BRANWYN | Performance Innerwear
Health and Wellness

5 Major Benefits of Investing in Your Underwear

Consider these benefits of investing in quality underwear for your mind, body, spirit, and our larger world. 
Who Makes My Innerwear? - BRANWYN | Performance Innerwear
Our Story

Who Makes My Innerwear?

Meet Şeyma Çiğdem Uygun, the incredible textile engineer and merchandiser who makes BRANWYN Performance Innerwear come to life.

Join us & get $10 to spend

Join our community and get tips on living an active, healthy & sustainable lifestyle.

Plus you'll get a $10 Gift Code for our naturally sustainable Merino products.

We won't spam you. We hate that stuff.

Our Merino Collections
Models wears BRANWYN's compressive shorts, a black Merino Wool bike short with a 6 inch inseam. Wearing BRANWYN's Merino sustainable Essential Compressive Short from the back. Merino wool biker short from BRANWYN.
Essential Compressive Shorts
$85.00 USD
30 reviews
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
Essential Racerback Sports Bra
$75.00 USD
305 reviews
Woman wearing BRANWYN's Essential Bralette, a bra from the Essential Collection. Made from soft, moisture-wicking Merino wool using seamless technology, this performance innerwear provides performance, comfort, and sustainability. The fabric is free from BPA, PFAS, and forever chemicals. Woman wearing BRANWYN's Essential Bralette, a bra from the Essential Collection. Made from soft, moisture-wicking Merino wool using seamless technology, this performance innerwear provides performance, comfort, and sustainability. The fabric is free from BPA, PFAS, and forever chemicals.
Essential Bralette
$48.00 USD
2556 reviews
Woman wearing BRANWYN's Essential Busty Bra, a bra from the Essential Collection. Made from soft, moisture-wicking Merino wool using seamless technology, this performance innerwear provides performance, comfort, and sustainability. The fabric is free from BPA, PFAS, and forever chemicals. Woman wearing BRANWYN's Essential Busty Bra, a bra from the Essential Collection. Made from soft, moisture-wicking Merino wool using seamless technology, this performance innerwear provides performance, comfort, and sustainability. The fabric is free from BPA, PFAS, and forever chemicals.
Essential Busty Bra
$58.00 USD
1982 reviews
Woman wearing BRANWYN's Essential Hipster, a high waisted merino wool underwear from the Essential Collection. Made from soft, moisture-wicking Merino wool using seamless technology, this performance innerwear provides performance, comfort, and sustainability. The fabric is free from BPA, PFAS, and forever chemicals. Woman wearing BRANWYN's Essential Hipster: light grey high waisted Merino Wool Underwear and matching Merino Wool bra.
Essential Hipster
$38.00 USD
1155 reviews
Woman wearing BRANWYN's Essential Bikini, a underwear from the Essential Collection. Made from soft, moisture-wicking Merino wool using seamless technology, this performance innerwear provides performance, comfort, and sustainability. The fabric is free from BPA, PFAS, and forever chemicals. Woman wearing BRANWYN's Essential Bikini, a underwear from the Essential Collection. Made from soft, moisture-wicking Merino wool using seamless technology, this performance innerwear provides performance, comfort, and sustainability. The fabric is free from BPA, PFAS, and forever chemicals.
Essential Bikini
$36.00 USD
801 reviews

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.