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Intraknit Bikini - Women's

3.892857142857143 out of 5 stars
28 Reviews


Size Chart


Why We Like The Smartwool Intraknit Bikini

Every base layer is better when it is made out of Merino wool. The Smartwool Intraknit Bikini features a Wool blend fabric that combines the comfort, warmth, and moisture-wicking properties of Merino wool with the softness of TENCEL Lyocell performance fabric. The Intraknit Bikini is thermoregulating, odor-resistant, soft, and comfortable.


  • Women's Merino wool underwear with a bikini cut
  • Merino wool blend for comfort and odor-resistance
  • Item #SWLZ91V
39% Merino Wool, 39% Lyocell, 15% Nylon, 7% Elastane
bikini, slim
Manufacturer Warranty
limited 2 year

Overall Rating

4 based on 28 ratings

Review Summary

1 Stars - 3 reviews
2 Stars - 3 reviews
3 Stars - 3 reviews
4 Stars - 4 reviews
5 Stars - 15 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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3 out of 5 stars

June 14, 2024

underwear rides up

The material was soft and substantial ( not too thick), and I liked the neutral pinkish color. Undies, including the trim at the waist, look durable. But the lack of elastic in the legs meant that the undies rode up over time. Even before they did, I had the uncomfortable feeling that they were going to. Riding up is a deal killer. Undies need to stay in place. I get the desire of manufacturers to avoid VPLs, but some elastic is necessary to avoid wedgies. And wedgies create their own VPLs, anyway.


Originally reviewed on

5 out of 5 stars

May 17, 2024

Great underwear!

I liked these underwear so much that I bought multiple pairs in other colors. They are very comfortable and fit well (disclaimer: I've got a small butt lol). I've used these for field work, hiking, and mountain biking and they've been great. I haven't worn them in super hot temperatures yet, and could see them being a bit warmer (the fabric is slightly thicker than my usual undies) - but I think the fit and odor resistance will make it worth it.


Originally reviewed on

4 out of 5 stars

May 14, 2024

Soft and good for travel

[This review was collected as part of a promotion.] It's soft and very comfortable and great material for quick dry and travel. However, I would say that if I were to buy this again, I would buy the briefs, because the bikini style does give you a wedgy if you are wearing it with a dress or loose shorts.


Originally reviewed on

5 out of 5 stars

April 27, 2024

Nothing better than Smartwool!

[This review was collected as part of a promotion.] Love it!


Originally reviewed on

5 out of 5 stars

March 15, 2024

Why isn't all underwear merino wool?!!?

[This review was collected as part of a promotion.] Super comfortable and love that it adds a layer of hygiene to my lady bits. I'm a size 12/14 and got the size Large and it fits great. Got these before a recent trip to Costa Rica, and so glad I did. With the humidity and heat, it was breathable and comfortable. Highly recommend!


Originally reviewed on

2 out of 5 stars

March 4, 2024

Nice fabric, lousy cut

I've used it several times

The fabric is so soft and stretchy! Unfortunately, these are seriously scant in the backside. I am not curvy, and don't have a lot of volume in the trunk, but these still leave me feeling the breeze. They are some seriously shifty knickers. If I wanted to exercise (or even sit around) with a wedgie, I would have purchased a thong. The rise is also a bit high for my tastes. If you want an 80s swimsuit/leotard cut and like tangas, these might be your thing.

Marie M
3 out of 5 stars

February 23, 2024

Not a good fit for me

[This review was collected as part of a promotion.] I was really hoping I would love these. They fit if I am standing, but as soon as I am moving, hiking or skiing they ride up on my left but cheek. This doesn't happen with my other underwear.


Originally reviewed on

5 out of 5 stars

February 14, 2024

Soft, breathable, cozy

[This review was collected as part of a promotion.] Love the comfort and breathability. Can wear these every day. I will keep buying these again and again. They work well for exercise and wick the sweat. Recommend!


Originally reviewed on

5 out of 5 stars

February 11, 2024

I will buy more

[This review was collected as part of a promotion.] Fits well. Stays in place. Super comfy and fast drying.


Originally reviewed on

5 out of 5 stars

February 7, 2024

Best underwear

[This review was collected as part of a promotion.] Soft, breathable, cozy


Originally reviewed on