Smartwool Microweight Thong Underwear - Women's


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Unbelievably soft and comfy next to your skin, the Smartwool Women's Microweight Thong Underwear are so much more than just a pair of panties. Made from merino wool, this smart wool underwear is naturally moisture-wicking, insulating and resistant to odors. Flatlock seams eliminate chaffing for the ultimate in low profile comfort. Pricey? Yes, but the Smartwool Microweight Thong Underwear for women are worth it.


  • Fabric: 96% merino wool, 4% elastane
  • Flatlock seams

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Review Summary

4.7 out of 5

3 Reviews

  • Build quality: 2
  • Great design: 2
  • Ease of use: 1
  • Performance: 1

  • Poor quality: 1
Comfort: 5 / 5
Durability: 5 / 5
Quality: 4.7 / 5
Fit: 2 / 5

3 Ratings & Reviews

Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
from Boulder, CO
35-44 yrs

Comfortable, use for aerobic activities
November 03, 2012

I have a couple of pair of these thongs, find them to run true to size, and extremely comfortable. No scratchy wool feeling at all. I use them for high impact activities from running, to hiking, to snowshoeing. I like the wicking action of wool and would have all my active items made from merino if I had the choice. Recommend 100%.

Pros: Great design, Build quality, Performance
Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
FitClothes: 2 / 5
from Dallas, TX
25-34 yrs

Comfortable but runs small
August 27, 2011

I buy merino wool underwear for their comfort and odor control in sweaty conditions. This thong runs pretty small. At 110 lbs and 5'3", I'm normally a size 0 or XS. I ordered an XS but it was too tight coming out of the package and a lot lower rise than the picture shows (not as close to my bellybutton as on the model). I thought I would keep them anyway until I saw a tag that said it was cut larger to allow for shrinkage after the initial washing. Then I knew they had to go back. I'm actually going to order a medium rather than a small this time to allow for that shrinkage. Plus I don't like thongs as tight as I usually wear my bikini style underwear - they're less comfortable that way.

Cons: Poor quality
Comfort: 5 / 5
Quality: 4 / 5
35-44 yrs

Comfortable-meets expectations
January 09, 2014

I found these to be soft, well-designed, and comfortable. Many times thinner style thongs cut into my skin and these don't at all. They run true-to-size. I will definitely be purchasing more. (I didn't rate, and can't comment on, durability as I recently received my first pair and have only washed once.

Pros: Great design, Build quality, Ease of use

Also Available

Smartwool Women's Microweight Thong Underwear Photo

Black, Lavender, Mineral, Mint, Natural, Persian Red, Silver Gray Heather and Violet.

Available sizes, while supplies last, include size xs, size small, size medium, size large and size extra large: xs, s, m, l, xl.

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