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Pull on the Smartwool NTS Lightweight Wind Brief before you head out for a fall run. The merino wool fabric wicks moisture and reduces odor, and the wind-resistant front panel prevents a bone-chilling breeze from nipping at your unders.

  • Flatlock seams prevent chafing
  • Smooth embossed waistband ensures you stay cozy
  • Reviews
  • Q & A

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not bad piece of undies

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

The briefs are nice and comfortable The fabric is too light and it be nicer if it was a lot thicker.The front panel is a bit strange looking at first but it does the job of keeping your valuables warm through a windy day.

Protect the equipment

    I ride 10k to work and run daily in eastern Germany, and in the middle of the winter you certainly can tell a difference wearing these. The fabric is comfortable and retains its fit better than some other wool products I have used which is nice. The only thing I would have liked to see would be an opening so you could use the bathroom wihout pulling them down. Otherwise I highly recommend them.

    Best WB's Ever

      As a Nordic Racer I have to wear these special underpants everyday I train. The SmartWool version is by far the best as it is not only a technical racing fit (order a size down) but feels light and yet totally protects your gear. Best part for any road warrior you can wear these things all day, hang em up at night, and they are dry and you'd never know they'd been used. Also since it's wool it washes easily in a sink if you are so inclined. Best piece of gear I own for what I do.