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

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The 2024 Holiday Gift Guide: Storytime Edition - BRANWYN | Performance Innerwear
Gear Guide

The 2024 Holiday Gift Guide: Storytime Edition

Find the perfect gift for the loved one in your life—and have some fun along the way!
From Ankle-Length to High-Cut: The Transformation of Women’s Olympic Uniforms - BRANWYN | Performance Innerwear
Gear Guide

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

The history and future of women's Olympic uniforms.
Woman running in the woods while wearing a black racerback sports bra.
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.
Woman in all black Merino layers, winter boots, and a beanie sitting on a picnic table in a winter mountain landscape.
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.
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. Person wearing black athletic pants and sports bra, standing on one leg with arms raised.
Essential Bralette
$52.00 USD
3382 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
3185 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
$78.00 USD
115 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 Sports Bra in black. Seamless Merino wool provides compressive, breathable support.
Essential Racerback Sports Bra
$85.00 USD
479 reviews
Side view of woman wearing grey high waisted Merino underwear by BRANWYN. The Essential Hipster high waisted comfortable women's panties. Woman wearing BRANWYN's Essential Hipster: light grey high waisted Merino Wool Underwear and matching Merino Wool bra.
Essential Hipster
$40.00 USD
1568 reviews
Side view of BRANWYN Essential Bikini Merino underwear in warm nude. Soft, breathable, and odor resistant, sustainable underwear. Warm nude Merino bikini panties by BRANWYN. Made from regenerative Merino wool to provide a sustainable solution for eco-conscious women.
Essential Bikini
$38.00 USD
997 reviews
Side profile of woman wearing BRANWYN Essential Boyshort seamless Merino Underwear in black. Back view of woman in black bralette and matching black Merino wool boyshort underwear. Made of quick-drying natural fibers that are gynecologist recommended.
Essential Boyshort
$42.00 USD
83 reviews
Side view of BRANWYN seamless Essential 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 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
204 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
19 reviews
Woman standing with hands on her hips in black compression leggings made of Merino Wool by BRANWYN. Back view of a woman in black Merino leggings for women. These Merino tights are warm enough to wear as a winter baselayer for skiing and hiking.
Essential Compressive Legging 28"
$158.00 USD
138 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
59 reviews

MONEY BACK GUARANTEE FOR 14 DAYS

Not sure about wool?

Merino wool is super soft like cashmere!

We know you'll love it! But just in case you don't, we offer a First Try Guarantee.*