Women’s natural bikini
"If you’ve been wearing these for a few years as I have, you’ll find the cut noticeably smaller. I’m really disappointed as these are all I wear. It’s doubtful that sizing up would satisfy."
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Making clothing can be a dirty business, but we strive to keep it clean. Our line is crafted for quality and long-term performance. And we limit what we make: small-batch production ensures every garment is built to the highest standards and finds a loving home. Our approach minimizes landfill waste and uses less energy and water. We know it’s disappointing when a style you love is out of stock, but we appreciate your joining us in our pursuit of the highest environmental standards and carbon neutral impact.
| Size | Size # | Bust | Waist | Hip | Sleeve | Inseam |
| XS | 0 | 33 | 24 ½ - 5 ½ | 34 ½ | 29 | 29 - 30 |
| S | 2 - 4 | 34 - 35 | 26 ½ - 27 ½ | 36 ½ - 37 ½ | 30 - 31 | 30 - 31 |
| M | 4 - 6 | 36 - 37 | 28 ½ - 29 ½ | 38 ½ - 39 ½ | 31 - 31 ½ | 31 ½ |
| L | 8 - 10 | 38 ½ - 40 | 31 - 32 ½ | 41 - 42 ½ | 32 - 32 ½ | 31 ½ |
| XL | 12 - 14 | 40 - 42 | 33 - 34 ½ | 43 - 44 ½ | 33 - 33 ½ | 32 ½ |
| XXL | 14 - 16 | 44 - 46 | 34 ½ - 36 | 44 ½ - 46 | 33 ½ | 32 ½ |
Next to Skin: Your second layer of skin, hugs the body tight for optimal layering.
Athletic: Snug fit, this layer fits close to the body for a contoured, slim silhouette.
Standard: Not too snug and not too loose, this layer is right in the middle for everyday use.
Relaxed: Loose fit for comfort and extra layering underneath.
Sleeve: With arm slightly bent, measure from the center back of your neck (at your spine) to the elbow and down to your wrist.
Bust/Chest: Measure full circumference of the chest at the widest point, under the arms.
Waist: Measure full circumference of the waist at the smallest point.
Hips: Measure full circumference of the hips at the widest point.
Inseam: Place measuring tape at crotch and measure to ankle.
For any sizing, styling, or general inquiries, please contact us.
This new design offers a true bikini-style fit, providing a balance of coverage and comfort for everyday wear.
New colors coming soon! Get first dibs by signing up below the add to cart button.
*The Natural Bikini runs small. We recommend sizing up from your usual size.
This new design offers a true bikini-style fit, providing a balance of coverage and comfort for everyday wear.
New colors coming soon! Get first dibs by signing up below the add to cart button.
*The Natural Bikini runs small. We recommend sizing up from your usual size.
Composition: 83% Merino Wool, 12% Nylon, 5% Elastane
Weight(s): 140 gsm
Micron gauge: 18.4μm
Our Pro Tech Lite fabric is our featherweight champion. For our lightest weight textile, we use just a touch of nylon and elastane to increase the fabric's durability and keep it fitting close to skin for ultimate performance.
Overall rating: 4.259259 / 5 from 54 reviews.
Customers appreciate the comfort and quality of these women's natural bikinis, highlighting their moisture-wicking performance and secure, no-slip fit. The design offers a balance of coverage and comfort, with a widened leg opening and streamlined side seams for maximum mobility.
Review topics: ["size","fit","color","underwear","quality","fabric","material","undies","feel","cut","coverage","wool","tag","ibex","use","medium"].
"If you’ve been wearing these for a few years as I have, you’ll find the cut noticeably smaller. I’m really disappointed as these are all I wear. It’s doubtful that sizing up would satisfy."
— Laura K. (2/5)
"I have 10+ year old ibex underwear that’s finally starting to wear out. These fit a bit different but I like them just as much. I can wear a small or medium but prefer the small (I liked the medium better in my old ones). Hopefully they will last as long. Please offer more light colors. The old gray ones were perfect."
— Staci S. (5/5)
"Very comfortable and breathable got multiple pairs"
— Courtney B. (5/5)
"I’ve had these for years & and obviously because I have so many I love them. They’re very lasting they feel genuinely comfortable. I do wish that Ibex clothes were still made in the United States as they were years ago. I’m a very old customer and I have many Ibex clothing."
— Manda H. (4/5)
"I’m all about Ibex and own many different garments, all of which I sincerely love! These underpants not so much. They are made well, comfortable, and quality made like all of Ibex’s clothing. The wool is light and smooth and barely there. Why don’t I “love” them? They are much skimpier than depicted in the stand alone photo. I did order up one size to begin with for comfort, but it’s the cut that is hanging me up. The crotch is narrower, the sides narrower, and the butt is narrower than what I expected, or envisioned from the one photo of them laid flat, not on a model. I’m a size small in practically everything at 5’4, 113lbs, 27 waist and 36 hip. Still giving these 5 stars, because they are a quality item, and otherwise comfortable and functional at keeping you “swamp butt” free while working out."
— Suzanne C. (5/5)
"great for travel, great for adventure, great for everyday. The perfect weight, comfortable and easy to hand wash while holding up in a washing machine. I've had one pair for almost 5 years and they are still my favorite."
— Jules (5/5)
"Very frustrated actually. In the past, the medium was a bit roomy( I still have a pair) Now they run much smaller with less fabric over the cheek area. Can’t wear them and sent them back but they appear lost in the mail, perhaps due to the snow. Last seen 2/5"
— Evelyn V. (5/5)
"Great but needs more coverage"
— Gabriela P. (4/5)
"First off, I love everything IBEX, and I own many Ibex garments. These are quality made underpants, and I love the wool used as it is soft, and wicking. I’m 5’4, 113 lbs, fit and trim, and the size chart says I’m a small, but I always order up for more forgiving elastic. I got the Medium and the fit is spot on. However, as much as I want to be in love with them, I’m not. They are cut too skimpy for my taste. I’ve wanted to try them a very long time, and have looked at the photos online often, then finally took advantage of a sale and got 3 pr. Laid out on the bed and flattened out, they look nothing like the depicted photos from the website. These are definitely very narrow at the sides, and very low in front. I’m bummed but I realize it’s a personal preference not Ibex. Just FYI to future purchasers; Just know these are quite small bikini underpants, and may not be what you are envisioning them to be."
— Suzanne C. (4/5)
"Lightweight, comfy, and quick drying! I'm 5'8" 125lbs and Medium fits great. There are no annoying tags sewn into the fabric."
— Katie B. (5/5)