The SmartWool PhD Women's Outdoor Ultra Light Crew Socks are sewn with a blend of ultra-breathable, non-itchy merino wool and durable nylon. Dive your toes straight in for a minimalist feel and maximum performance.

  • Reviews
  • Q & A

Great socks

  • Familiarity: I've used it once or twice and have initial impressions

I bought these for my girlfriend and so far she loves them. She wore them on a vacation where we walked for miles. She normally gets blisters when we walk that much, but did not have that problem when wearing these.

Great, everyday boot socks

  • Familiarity: I've put it through the wringer

I specifically looked for these PhD Outdoor Ultra Light socks for everyday wear, especially when traveling. With my other Smartwool socks, they tend to get too warm or feel too thick if the weather gets above 60 degrees. I mostly wear them with my Blundstones and they're light enough to not get hot as you go from climate to climate. Not sure I would recommend for a long, wet hike, but they're perfect for wearing all day without overheating.

Learn More: Smartwool PhD Socks

Learn more about the comfort, fit, and durability of Smartwool PhD performance socks. #gofarfeelgood

Super Thin

  • Familiarity: I returned this product before using it

These are very thin just like it says! I didn’t realize they would be that thin and I wanted a little more padding in the toes. I also didn’t love the material, they felt like they could be itchy.

Na Pali Coast Tested

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    Na Pali Coast Tested