Woman in BRANWYN ZQ ethical Merino wool bra and underwear running outside
Woman in BRANWYN ZQ ethical Merino wool bra and underwear

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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
From Ankle-Length to High-Cut: The Transformation of Women’s Olympic Uniforms - BRANWYN | Performance Innerwear
Empowerment

From Ankle-Length to High-Cut: The Transformation of Women’s Olympic Uniforms

The history and future of women's Olympic uniforms.
The History (and Future) of Athletic Bras - BRANWYN | Performance Innerwear
Gear Guide

The History (and Future) of Athletic Bras

Let's take a look at the shockingly short and deeply interesting history of athletic bras.
Why Innerwear is the Original Base Layer - BRANWYN | Performance Innerwear
Gear Guide

Why Innerwear is the Original Base Layer

Your baselayer matters more than you think. Discover how Merino wool innerwear keeps you warm, dry, and safe in cold weather—starting with your underwear.
Our Gift Guide for the Wild, Weird, and Wonderful Women in Your Life - BRANWYN | Performance Innerwear
Gear Guide

Our Gift Guide for the Wild, Weird, and Wonderful Women in Your Life

Explore our guide full of naturally sustainable Merino options and pay-it-forward ideas.
Why Merino is a Surprisingly Awesome Choice for Swimwear - BRANWYN | Performance Innerwear
Gear Guide

Why Merino is a Surprisingly Awesome Choice for Swimwear

Merino is breathable, comfortable and quick-dry, giving us more freedom to do the things we love like surf, swim and track down hidden waterfalls.
Layer for Any Weather Like a Pro - BRANWYN | Performance Innerwear
Gear Guide

Layer for Any Weather Like a Pro

Here’s how to layer like a pro so you can enjoy the great outdoors with confidence all year round.

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Our Merino Collections
Front view of BRANWYN Essential Bralette in Light Nude, seamless ZQ Merino wool bralette. Woman stretching in BRANWYN Essential Bralette in Light Nude, naturally moisture-wicking Merino bralette for performance
Essential Bralette
$52.00 USD
2731 reviews
Side view of BRANWYN's Busty Bra in Black, seamless underwire free Merino bralette. Side angle of sustainable Merino Busty Bra in black, supportive wireless bra for large busts.
Essential Busty Bra
$62.00 USD
2193 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
$85.00 USD
377 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
$40.00 USD
1248 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
$38.00 USD
852 reviews
Woman wearing BRANWYN's Essential Thong, a Merino wool thong 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 Merino Wool Thong, 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 Thong
$36.00 USD
336 reviews
Coming Soon
Side profile of BRANWYN Essential Boyshort seamless Merino Underwear in black. Essential Boyshort - BRANWYN | Performance Innerwear
Essential Boyshort
$42.00 USD
No reviews
Image shows a woman wearing BRANWYN's Compressive Leggings, a compression leggings designed for movement and high-performance comfort. These compressive, body-sculpting leggings offer a second-skin feel with the natural breathability and sustainability of Merino wool. Made from a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, they provide warmth, support, and flexibility for everything from chilly morning runs to everyday wear. Featuring a full-length 28” inseam for added coverage, th Image shows a woman wearing BRANWYN's Compressive Leggings, a compression leggings designed for movement and high-performance comfort. These compressive, body-sculpting leggings offer a second-skin feel with the natural breathability and sustainability of Merino wool. Made from a POWRspun blend of 76% extra fine Merino, 14% nylon, and 10% elastane, they provide warmth, support, and flexibility for everything from chilly morning runs to everyday wear. Featuring a full-length 28” inseam for added coverage, th
Essential Compressive Legging 28"
$158.00 USD
27 reviews
Models wears BRANWYN's seamless compressive shorts, a black Merino Wool bike short with a 6 inch inseam. Great for hiking, yoga, and the gym. Wearing BRANWYN's Merino sustainable Essential Compressive Short from the back. Merino wool biker short from BRANWYN.
Essential Compressive Short
$85.00 USD
98 reviews
Coming Soon
Woman wearing BRANWYN 25" Seamless ZQ Merino Wool Compressive Tights in Black Size medium. Two women wearing black athletic wear posing against a plain background
Essential Compressive Legging 25"
$148.00 USD
No 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.