If you have any other questions just drop us a line at

We’ll do our best to get back to you within 2 business days. 


Nope! Just the opposite… The thermoregulating properties of Merino balance your body temperature, keeping you cool when it’s hot and warm when it’s cold. The sheep who wear it every day thrive in temperatures ranging from 95°F to -4°F. Plus, the fibers naturally carry moisture away from the skin, making it ideal for a sweat session.

This isn’t your grandma’s wool sweater. Merino is super fine and buttery soft. Merino comes from Merino sheep, a breed world-renowned for producing the softest, highest-quality wool of any sheep. Merino fibers are super fine (thinner than human hair!), making Performance Innerwear soft and comfortable. Most women buy their first BRANWYN piece for travel or adventure, but eventually make them their daily go-to.

We recommend using a mesh cotton laundry bag to reduce stretching and stress on the fabric, and to protect the straps on the bras. Hand or machine wash with like colors in cool to warm water with a mild eco-friendly soap, then hang to dry. On the road or in the wild? Wash with shampoo or mild soap in the shower, rinse thoroughly, roll in a towel to eliminate excess water, and hang to dry. Merino dries super quickly. Do not put it in the dryer.

Always wash black and darker garments separately to avoid color transfer.  Never use bleach or fabric softener. Bleach destroys Merino, while fabric softeners coat the fibers, minimizing their ability to manage moisture and regulate body temperature.

Garments damaged due to improper care cannot be refunded or exchanged.

Unlike petroleum-based polyesters and microfibers, Merino wool is a completely natural regenerative fiber. Unblended Merino wool is 100% compostable and 100% recyclable.

Nylon and Elastaine are not green materials. We are currently working hard to switch to sustainable alternatives. Our goal is a 100% compostable product.

The greasy wool is cleaned and then superwashed to make it TEC (total easy care). This gives the garments the ability to be washed/dried without shrinking.


Performance Innerwear means we source from the best of the best across the world. Our Merino wool comes from ZQ sheep raised in New Zealand, our yarn is spun by Sudwolle; and our products are knitted seamlessly, garment dyed, and finished at our factory in Istanbul, Turkey.

Our factory in Istanbul knits each garment from un-dyed Merino yarn on Santoni seamless knitting machines. By knitting we get a 4-way stretch material, and  instead of cutting rolls of fabric, we eliminate scraps, reducing fabric waste . Each finished piece is dyed and pre-shrunk before being individually packed in compostable and recyclable “plant plastic.”

Heavens, no. Our Merino wool comes from an ethical farm in New Zealand that adheres to ZQ Grower Standards to ensure the ethical treatment of animals and sustainable farm practices. Shearing is a natural part of the sheep’s care and is similar to a person getting a haircut. Our sheep live happy, healthy lives grazing the emerald fields in the land where The Lord of The Rings was filmed.

You might find that the size or color varies from piece to piece — and that’s totally normal! While fast fashion companies use mass product techniques to create identical, cookie-cutter garments, BRANWYN makes one-of-a-kind pieces from natural fibers, using hand-crafting. We start with wool (a natural fiber that can change slightly from sheep to sheep). Our seamless knitting technology creates the basic shape of the product, which is then dyed in small batches, cut by hand, and sewn. All of this makes every single BRANWYN piece unique and special… just like you! 


We offer a $10 gift code for first-time customers when you sign up for our newsletter. We also give you $10 for every friend you refer. Only one discount code can be used per purchase. Do keep an eye on your spam folder, as sometimes the code will end up there.

Your order should ship within 1-2 business days. We ship Monday-Friday, excluding holidays. Once your order ships, you'll receive another email with a tracking number.

If the item you want is out of stock, you can sign up for the waitlist on the product page. We’ll send you an email when the item you want is back in stock, so you'll be the first to know! 

We are unable to change or cancel orders after they have been placed. If you need to return or exchange an item, please contact

We currently accept major credit cards and PayPal.

We do! You can find gift card options here ranging from $25 to $200. Looking to give more? Drop us a line at and we will create a custom order for you.


We offer free shipping on orders over $85.

Orders are usually processed within one business day, and the standard shipping generally takes 3-7 business days. We offer 2-day shipping and overnight shipping as well. If you have questions or concerns, please email us at

You can track your order directly on our website. Click here to go to the order tracking page.

We are using glassine bags for our product packaging and kraft mailers for shipping. These choices reflect our commitment to sustainability. Glassine bags are fully biodegradable and recyclable, breaking down quickly and reducing long-term waste. Kraft mailers, made from recycled materials, are not only sturdy for shipping but are also eco-friendly. Together, these packaging options contribute to a more environmentally conscious approach to packaging and shipping.

We offer International Delivery Duty Paid (DDP) shipping, which means that all duties, taxes, and fees are collected and paid on your behalf at checkout.

We guarantee that there will be no additional charges upon delivery.

Regrettably, we cannot accept returns, exchanges, or refunds for International DDP (Delivery Duty Paid) shipments due to the complexities of international duties, taxes, and fees.


Our First Try Guarantee allows you to order and try one piece per style, color, and size.

You have 14 days from date of receipt to test them out. If they don’t work for you, you may exchange them for a different style/color/size or return them for a full product refund to your original payment method.

Please only open one piece per style, color, and size — we don't refund multiples that have been opened.

Go to our Return & Exchange Portal to initiate your return or exchange.

You have 30 days from date of receipt to try a product and exchange it for any reason.

We will send you a shipping label for the return and get your replacement items shipped at no cost to you.

Go to our Return & Exchange Portal to initiate your return or exchange.

Our Performance Innerwear Essentials are built to last.

That's why our warranty replacement program allows you to receive a free replacement if any item from our Performance Innerwear Essentials collection doesn't hold up under normal wear for a full year from the date of receipt.

Please note that this warranty exclusively covers items from the Performance Innerwear Essentials collection and does not extend to our SWAG (Sustainable Wool Active Goods) collection.

To start your warranty claim, please email with a brief description and pictures of the issue so our tech team can review.

Our First Try Guarantee allows you to try one piece per style, color, and size and return it for a full refund within 14 days of receipt for any reason.

We process returns within 7 business days of receiving your returned package. Once a refund is processed, please allow an additional 3-5 business days to see it on your original form of payment. If you have any questions, drop us a line at

More about us

BRANWYN is a Welsh goddess of love and beauty, known for her compassion, empathy, foresight, strength, and courage. As a goddess, she is associated with new beginnings and vitality. Legend has it that you can call on BRANWYN when you need help starting a new project, are looking for inspiration, or are faced with a new beginning.

Our logo was inspired by a Celtic symbol of female power. We believe harnessing the power of women is the key to building a better world.

We hire both professional models and non-professional models to rock our Performance Innerwear. Showcasing our products on real bodies is incredibly important to us. That’s why we never try to “perfect” the look of women’s bodies or skin with retouching. Every woman is already perfect just as we are! 

Growing up, our designer Shawna's dad went to all her sports games and used to encourage her with the cheer “Stay golden!” Originally a quote from the movie The Outsiders, to us it means: "Be true to yourself and march to the beat of your own drum."

Yes, we are! Stay GLDN | Simply Better Underwear originally launched on Kickstarter in 2016. In 2019, the brand was adopted from Shawna and Garrett Lauringson and merged with BRANWYN Performance Innerwear.

We have future plans for brick and mortar retail. Nothing available at this time.


Email us anytime at and we'll get back to you shortly!

We're always looking for awesome people to join the BRANWYN team! Reach out to and tell us your story.

Please reach out to and we'll take it from there.


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.