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PhD Cycle Ultra Light Micro Sock

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Ultra-light and exceptionally durable

The Smartwool PhD Cycle Ultra Light Pattern Micro Sock is the perfect no-show sock to wear on the hottest day. The mesh ventilation of the sock promotes breathability, allowing you to ride and workout longer in the hottest conditions. The dual-elastic technology allows the PhD Cycle Ultra Light sock to stay snug against your foot with the right amount of stretch, remaining extremely durable and ultra-comfortable.


  • Indestructawool™ technology provides exceptional durability and comfort
  • 4 Degree™ Elite fit system keeps the socks in place and helps them move with your feet
  • Mesh ventilation zones provide breathability and temperature control
  • Virtually Seamless® toes
  • Merino wool is a naturally odor-resistant and durable fabric

Discount Codes are not applicable to Closeouts.

This product is NOT Eligible for VIP Points.
Shoe Size(US Men)03-5.56-8.59-11.512-14.50
Shoe Size(US Wom)04.5-6.57-9.510-12.500
Shoe Size(Eur)034-3738-4142-4546-490

Cuff Height: No-show 


Fabric Type: Synthetic