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

BLOG | IN THE WILD

WHEN DO YOU FEEL MOST POWERFUL? #BRANWYNInTheWild

It’s Official: Your Innerwear Is (Still) 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.
Summer Camp Isn’t Just for Kids - BRANWYN | Performance Innerwear
Adventure

Summer Camp Isn’t Just for Kids

Why women are heading back to camp—and how these grown-up adventures help you reconnect, recharge, and rediscover your joy.
Two women running in Merino wool activewear sets.
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.
The Woman’s Guide to Discharge - BRANWYN | Performance Innerwear
Health and Wellness

The Woman’s Guide to Discharge

What’s normal, what’s not—and why releasing liquids is just part of being human.   
Woman petting her dog mid hike on a hiking trail.
Adventure

How to Bond With Your Dog in the Great Outdoors

Looking to hike with your dog? Here are tips and tricks for unforgettable adventures with your four-legged friend.
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.  
A women traveling solo and looking out over the pyramids in Egypt.
Adventure

The Complete Guide to Solo Travel For Women

Insight, inspiration, and packing tips from solo female travelers who’ve been around the world and back.  
Behind the scenes photo from a photoshoot showing a photographer capturing a woman in Merino wool leggings in front of a backdrop.
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 ...
Always Cold? Warm Up the Natural Way With Merino Wool - BRANWYN | Performance Innerwear
Gear Guide

Always Cold? Warm Up the Natural Way With Merino Wool

Did you know women run colder? Here's why women are always cold — and how Merino wool can help. 
Two women wearing black and beige Merino underwear sets against a white background

Join Us & Get 15% Off Your Next Order

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

Plus, you’ll get a 15% gift code for our naturally sustainable Merino wool products.

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

Our Merino Collections
BRANWYN's seamless Merino wool Bralette bra in Black. Natural fiber, plastic free activewear. Close up of woman wearing black Merino bralette and raising arms over her head.
Essential Bralette
$52.00 USD
3517 reviews
A woman wearing a brown Merino wool bra and underwear against a plain background Woman wearing a brown seamless Merino wool bra against a neutral background.
Essential Busty Bra
$62.00 USD
3418 reviews
Sold out
Woman wearing a light gray sports bra sitting against a neutral background Woman wearing a light gray bikini set on a beige background
Essential Supreme Bra
$76.00 USD
117 reviews
Front view of black Essential Racerback Sports Bra by BRANWYN. Merino Wool compressive bra wicks sweat and keeps you dry through hikes, skis and workouts. Close-up detail of racerback design on BRANWYN Racerback Sports Bra in black. Seamless Merino wool provides compressive, breathable support.
Essential Racerback Sports Bra
$85.00 USD
483 reviews
Side view of woman wearing grey high waisted Merino underwear by BRANWYN. The Essential Hipster high waisted moisture wicking underwear. Woman wearing BRANWYN's Essential Hipster: light grey high waisted Merino Wool Underwear and matching Merino Wool bra.
Essential Hipster
$40.00 USD
1652 reviews
Side view of BRANWYN Essential Bikini Merino underwear in warm nude. Soft, breathable, and odor resistant, sustainable underwear. Warm nude Merino wool panties in a bikini cut by BRANWYN. Made from natural fiber Merino wool to provide a sustainable solution for eco-conscious women.
Essential Bikini
$38.00 USD
1033 reviews
Side profile of woman wearing BRANWYN Essential Boyshort seamless Merino Underwear for women in black. Back view of woman in black bralette and matching black Merino wool boyshort underwear for women. Made of quick-drying natural fibers that are gynecologist recommended.
Essential Boyshort
$42.00 USD
105 reviews
Side view of BRANWYN seamless thong underwear in light nude. Eco-friendly underwear made for travel, activity and everyday. Back view of BRANWYN Essential Thong in light nude. Seamless Merino wool thong underwear for women.
Essential Thong
$36.00 USD
383 reviews
Models wears BRANWYN's seamless compressive shorts, a black Merino wool bike short with a 6 inch inseam. Photo of backside of woman wearing black Merino shorts and a green Merino bra. Women's wool compression shorts with a 6" inseam.
Essential Compressive Short 6"
$85.00 USD
221 reviews
BRANWYN seamless Merino wool Black 8" compressive shorts Person wearing a black sports bra and shorts on a beige background
Essential Compressive Short 8"
$95.00 USD
22 reviews
Woman standing with hands on her hips in black compression Merino leggings BRANWYN. Back view of woman wearing black BRANWYN Merino leggings, winter leggings made from breathable Merino wool for hiking and skiing.
Essential Compressive Legging 28"
$158.00 USD
139 reviews
Woman wearing black Merino compression leggings by BRANWYN made of Merino wool. Perfect yoga legging capris or for a winter baselayer. Two women holding arms wearing black, seamless Merino wool legging pants—perfect for yoga capris or a winter baselayer.
Essential Compressive Legging 25"
$148.00 USD
66 reviews