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Run no matter how hot the sun.

No matter how high the thermometer climbs, it's never good to run or hike without a sock. The Icebreaker Multisport Ultralight Mini Sock gives you an ultra-lightweight sock for the hottest days on the trail, road, or while training in the gym.

  • The natural merino wool helps the sock breathe, regulate temperature, wick moisture, and resist the build-up of odors
  • Top breathable vents dump excess heat when you decide to sprint the last mile to the trailhead
  • Instep and Achilles support keep the fit feeling natural
  • Smooth LIN toe seam feel great and prevent rubbing and blistering and the reinforced heel and toe box ensure durability

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Here's what others have to say...


Nice socks

  • Familiarity:I've used it several times
  • Fit:True to size
  • Height: 5'8"
    Weight: 140 lbs

These are good socks, fit well, and are comfortable. May not be for extreme heat, as they had a little bit of excess moisture on longer runs.


Great running sock

  • Height: 6'0"
    Weight: 170 lbs
    Size Purchased: Medium

What I expect out of a ultralite mini sock. Nice and thin, no odor, no rubbing. Have had them for a few months and haven't had any issues with durability.


OK Socks

  • Familiarity:I've put it through the wringer
  • Fit:Runs small

These socks wick moisture great, but they seem to be coming apart easily after about 10 uses. I bought 5 pair and it seems to be happening to half of them. Also the elastic at the top of the sock is too tight. Usually Icebreaker products are more durable.


New favorite sock

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

There are only so many things that you can say about a running sock, but this sock is the best i have tried yet. Definitely wicks moisture super well, fits me just right, is light and breathable, and does not smell terrible after a couple hours of trail running (does not smell great either. Merino wool can only do so much, but definitely an improvement over any material I have ever used). Definitely my new favorite sock. The durability remains to be tested. If this sock can last me until next winter, then I will dub it a very durable sock.


Good quality but.

  • Familiarity:I've used it once or twice and have initial impressions
  • Fit:True to size

Liked the quality and size of the socks. But the top elastic, to me, is too strong.

Hopefully, after some use hopefully the elastic will relent.


Great Socks

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

these socks are super light-weight and thin. they wick away moisture and refuse to hold odors. i mostly use them for running and i love them



    These ultra-light socks don't feel like anything on your feet, but at the same time the Merino wool can keep your feet comfortable when the temperature drops into the 50s. They do a great job of wicking sweat and block odor for days.