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Classic Thermal Merino Base Layer Pattern Bottom - Women's

4 out of 5 stars
1 Review

Out of Stock

Don't worry though, we have a lot more Women's Midweight Long Underwear Bottoms in stock than that.

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Why We Like The Classic Thermal Merino Base Layer Pattern Bottom

Slotted as a purely merino baselayer option from Smartwool, the Classic Thermal Base Layer Bottom offers excellent thermal regulating properties to keep us spinning laps on our favorite chair. Merino wool is truly the leading insulating material because it manages to retain warmth even when it’s damp and breathe with us as we work up a sweat—all while being naturally odor-resistant.


  • Baselayer bottoms for anything from ski touring to freeride laps
  • Full merino wool construction helps us manage our microclimate
  • Form-fitting design eliminates excess material for enhanced mobility
  • Mid-rise provides a secure fit and feel for dynamic movement
  • Flatlock seams enhance comfort and bolster durability
  • Item #SWLZ8RE
100% merino wool
Insulation Weight
natural attribute of merino wool
skiing, snowboarding
Manufacturer Warranty
2 years

Overall Rating

4 based on 1 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 1 reviews
5 Stars - 0 reviews

Fits Small

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Runs smallTrue to sizeRuns large


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4 out of 5 stars

May 18, 2023

Good quality. Snug fit.

I returned this product before using it

The material feels comfy and sturdy. Love the color/pattern! Not see thru at all even though it is a very light color for leggings. Nice wide waistband to help avoid rolling and cutting into your side. I wanted to love these, but ended up returning because of the fit. They were very snug in the waist and around the thighs. The seams on my thighs looked distorted due to how tight they were. I am a very solid size medium (US size 8-10 in most pants and dresses). I would have tried exchanging for a size up but I am short and the medium was already a bit long. I assume the large would be longer.

Meagan A

Originally reviewed on Backcountry.com