Smartwool® PhD Ultralight Socks

PhD Ultralight Socks by Smartwool are incredibly breathable, rugged, and made for adventure.


Indestructible wool technology for elite durability, textural designs in stitching, and colors reminiscent of blue summer skies and crisp, fiery sunsets combine in this ankle-length PhD Ultralight Sock by Smartwool. A narrower, slimmer fit, designed specifically for women, ensures all-day comfort while hitting the trail. Body-mapped mesh zones lend additional breathability to keep your feet dry and odor-free. Seamless toe. Merino wool/nylon/spandex. Washable. Made in USA.
  • Merino wool, nylon, and spandex provide a comfortable, breathable fit
  • Varying textures in stitching provide visual interest
  • Slim, narrow design fit women's feet perfectly
  • Zones of mesh for additional breathability
  • In rich sky-blue and crisp sunset colors
  • Extremely durable wool technology holds up to an active lifestyle


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