Essential Bralette
$44.20
Skip to product information
Essential Bikini
Sale price
$32.30
Regular price $38.00SAVE
15%
Underwear Size Guide
All our knitwear has a lot of stretch, so you might be able to wear two different sizes. If you are unsure, size up.
| WAIST | HIPS | PANT | |
| XS | 23 - 24 | 32 - 34 | 0 - 2 |
| S | 24 - 26 | 34 - 36 | 2 - 4 |
| M | 26 - 28 | 36 - 38 | 6 - 8 |
| L | 28 - 30 | 38 - 40 | 10 - 12 |
| XL | 30 - 32 | 40 - 42 | 12 - 16 |
| XXL | 32 - 34 | 42 - 44 | 16 - 18 |
Tell me more about the fit
Our Performance Innerwear is meant to fit snugly on the body. If you prefer a looser fit, we recommend sizing up. If it feels just a little tight and you aren't sure if the next size up would be better, then we recommend wearing and washing a few times to see if it breaks in to your liking before exchanging it for another size.
Will it stretch out?
Not really. Our Performance Innerwear does give a bit with wear, but instead of becoming loose, it will mold to your body more over time.
Bundle 2 | SAVE 5%
Bundle 3 | SAVE 10%
Bundle 4+ | SAVE 15%
*Must be same size & color.
Bundle 3 | SAVE 10%
Bundle 4+ | SAVE 15%
*Must be same size & color.
Bundles do not qualify for First Try Guarantee.
This Essential Bikini stays securely in place and adapts to your movements, keeping you fresh, dry, and at ease all day long regardless of where your activities take you. Made from premium ZQRX Merino wool, the seamless construction and gentle elastic waistband prevent pinching and slipping when you're hiking, cycling, mountaineering, exercising, or doing yoga — it's so pleasant to wear, you won't even notice it's there!
Bonus: Our Merino wool carries both ZQ+ and Responsible Wool Standard certification, making it regenerative and eco-conscious. (This also means it contains no BPA, PFAs, or harmful forever chemicals).
Double Bonus: The Bikini performs beautifully in and around water. It dries remarkably fast.
Curious to learn more? Scroll below to read what our customers have to say!
Our Essential Bikini features a low-rise and four-way knit stretch that fits snugly around your hips. It's constructed using seamless knitting technology to prevent chafing or scratchy seams.
Our Performance Innerwear collection is designed to hug your body. If you prefer a less compressed fit or are in between sizes, we recommend sizing up.
Care Guide:
We recommend using a mesh cotton laundry bag to reduce stretching and stress on the fabric. Hand or machine wash with like colors in cool water with a wool-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.
IMPORTANT:
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.
Material:
Our Merino wool is ZQ+™-certified. Our factory is located in Europe.
Each piece is knit seamlessly on Santoni machines and dyed in small batches. Every garment is unique, so no two pieces are exactly alike. We are very proud of our slow craft manufacturing process.
A GLDNspun™ knit blend of 81% extra fine Merino wool, 14% nylon, and 5% Spandex.
This Essential Bikini stays securely in place and adapts to your movements, keeping you fresh, dry, and at ease all day long regardless of where your activities take you. Made from premium ZQRX Merino wool, the seamless construction and gentle elastic waistband prevent pinching and slipping when you're hiking, cycling, mountaineering, exercising, or doing yoga — it's so pleasant to wear, you won't even notice it's there!
Bonus: Our Merino wool carries both ZQ+ and Responsible Wool Standard certification, making it regenerative and eco-conscious. (This also means it contains no BPA, PFAs, or harmful forever chemicals).
Double Bonus: The Bikini performs beautifully in and around water. It dries remarkably fast.
Curious to learn more? Scroll below to read what our customers have to say!
Our Essential Bikini features a low-rise and four-way knit stretch that fits snugly around your hips. It's constructed using seamless knitting technology to prevent chafing or scratchy seams.
Our Performance Innerwear collection is designed to hug your body. If you prefer a less compressed fit or are in between sizes, we recommend sizing up.
Care Guide:
We recommend using a mesh cotton laundry bag to reduce stretching and stress on the fabric. Hand or machine wash with like colors in cool water with a wool-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.
IMPORTANT:
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.
Material:
Our Merino wool is ZQ+™-certified. Our factory is located in Europe.
Each piece is knit seamlessly on Santoni machines and dyed in small batches. Every garment is unique, so no two pieces are exactly alike. We are very proud of our slow craft manufacturing process.
A GLDNspun™ knit blend of 81% extra fine Merino wool, 14% nylon, and 5% Spandex.
Complete the set
PERFORMANCE WITHOUT COMPROMISE
Designed for superior performance and maximum comfort—it all starts with Merino wool. Super-soft, ultra-fine Merino wicks sweat to keep you dry, fresh, and funk-free. The natural crimp of its fiber traps air so you stay cool when things heat up and keep warm when there’s a chill.
Moisture wicking
Naturally breathable
Temperature regulating
Odor Resistant
Buttery Soft Natural Fiber
Gynecologist Approved
Customer Reviews
★★★★★
4.78 out of 5
Based on 1073 Reviews
★★★★★
906
★★★★★
122
★★★★★
30
★★★★★
10
★★★★★
5
98.2
93.2
Cambridge, US
Bra
It is so soft and supportive you don’t even feel like your wearing a bra.
Jessica
followed reviews and bought one size up from my measurements and they fit great. love the material and how well it stays dry and odor free after being outside in the Florida heat. I've already placed a 2nd order.
Review written in Shop App
Minneapolis, US
So very happy
These are so comfortable and breathable. I love them!
Hayward, US
My FAVORITE!!!
I bought these for hiking and backpacking but now just want to wear them ALL the time. They fit perfectly, look cute (which is important) and are super comfortable.I absolutely LOVE these Essential Bikinis!! For reference, my hips are a 38 and I ordered a size L. I do find I need to size up with most of Branwyn's products. But their size chart is fairly accurate and if I ever have questions I just reach out to the Branwyn team and they get back immediately! Their exceptional customer service is just another reason I love Branwyn!!
Pennington Gap, US
Quality
I am really happy with my new undies. They are cool and comfy. I often forget I’m wearing them. They feel really high quality. They are slightly thicker than another wool brand of undies I own which makes me think they are more durable, and I like that.
My only not-favorite thing about them is that I usually wear a size small in nearly all clothes, but in these I wear a Large. And that’s just not fun. Why not change the labels to align more closely with standard sizing and also make women feel better about themselves?? Lol