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Treat your feet sweet to beat the heat.

You'll wonder how Smartwool managed to squeeze this much intelligent technology into a package so small that doesn't require recharging. The PhD Cycling Ultra Light Micro Socks keep your feet dry and comfortable all summer without ridiculous floodwater tan-lines.

  • 4-Degree fit system to provide a secure, comfortable fit around the heel, arch, and instep
  • Wool-on-wool system adds an extra layer of wool to the heel and toe areas for shock-absorption and durability
  • Made with odor-reducing New Zealand Zque Merino wool

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Here's what others have to say...

5 5

The one and only

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

So good that I bought 6 more pairs. Now I have one for every day of the week

5 5

Stay classy

These sit just above the cuff of the shoe, don't move at all (ie, they don't slip down), and do not cause any hot spots to develop. I know the trend is high-cuff socks, but that is a mistake. Your children, and your children's children, will scold you for participating in that gory faux pas. Do yourself a favor, and get these high quality, low-cuff socks that call no attention to themselves. Wool is real, and you should be too. Thanks

5 5


Let me say it again, Perfection. Fit, comfort, wicking and when I forget to wash them they don't smell bad. Perfection.

5 5

You will not find a better cycling sock.

This sock has it all. Cushioning where you need it. Arch support. Lightweight. Great ventilation. I've biked a ton of miles with these socks and have never had a problem with hot feet. Oh yeah, merino wool whips all other materials for socks.