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Crazy comfort before, during, and after you work out.

The SmartWool Women's Microweight Bottom takes care of you from the moment you put it on until you take it off. Flatlock seams and an elastic waistband are comfortable as soon as you slide into the Microweight Bottom. Super-soft merino wool wicks moisture and breathes well to keep you dry and comfortable for your entire workout. You won't have to go slinking home right after your workout, either, thanks to merino's odor-fighting properties.

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Here's what others have to say...


Runs large

    Runs large, but still fits nicely. I'm 5 foot four, 138 pounds, 36C-I ordered a large and it was too big so I went ahead and ordered a medium.


    Great to get on sale!

    • Familiarity:I've put it through the wringer
    • Fit:True to size

    I love smartwool and try to wait for a sale to buy it. It doesn't itch and you can actually wash it in the washing machine and it won't shrink. It doesn't smell bad like polypropylene, either. I wear it as a base layer for kayaking.


    Love the flat waistband

    • Familiarity:I've used it several times
    • Fit:True to size

    The new flat waistband is amazing. I always hate long underwear because they dig into my waist but these fit great at the waist and are flat against my skin, not digging in at all.


    Perfect for hiking

    • Familiarity:I've used it several times
    • Fit:True to size

    I'm in the PNW and wear these all the time. Got totally stuck in a deluge yesterday and although my rain pants weren't up to the task, because I had these wool tights on, I was still just fine temperature wise. Only thing that keeps it from 5 stars is that they sag just a bit in the crotch.


    The best!

    • Familiarity:I've put it through the wringer
    • Fit:True to size

    Bought these as an added layer for a trip to Patagonia, Chile and all I can say are these are the bomb! I ended up wearing just these with gaitors and my boots, keeping rain gear in my pack in case of bad weather, and these tights made the best, most comfortable hiking pant imaginable. I actually developed a rash on my inner thighs from hiking in wet rain forest conditions (wearing traditional rain-resistant, convertible hiking pants from Prana), and these tights ended up being the only thing I could wear for a week that didn't chaff or irritate. I was worried they would be a little see-through, but they weren't and they worked great for hot days AND for cold. I had a couple falls that ended up tearing a hole or two in the cloth, but i sewed them up happily, as these are now my go-to's for any outdoor activity!

    Unanswered Question

    C an you please tell me the exact weight...

    C an you please tell me the exact weight of this product?


    love them

    • Familiarity:I've put it through the wringer
    • Fit:True to size

    I use them for xc skiing, road cycling and running. These light weight bottoms are really warm and so thin so it doesn't feel like I am wearing two layers. I liked them so much I got my mother a pair that she wears under her every day pants and she has not stopped talking about them yet!!


    excellent for cold weather hiking

    • Familiarity:I've used it several times
    • Fit:True to size

    used these for hiking in 35-40 deg weather. kept me dry and warm.

    easy to move in, no bulk at all and more comfortable than the synthetics i had been using


    best merino legging!

      They're become my go to underlayer for winter. I wear them under to work. I wear them as my base layer when skiing/hiking. I've even worn them to bed! These bottoms are amazingly comfy, never itchy. It will keep you warm but not too hot. What more could you want?!


      Itchy Seams

      • Gender:Female

      I'm sad. I love the material, the fit, the way they hide perfectly under your clothes. The warmth is excellent. But, itchy seams made me have to return these. Smartwool is an excellent product, not sure how/why seams are itchy =(