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Smartwool PhD Cycle Ultra Light Mini Sock

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Ultra-light and exceptionally durable

The Smartwool PhD Cycle Ultra Light Pattern Mini Sock is the perfect 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

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Smartwool PhD Cycle Ultra Light Mini Sock
Other styles of this product are available.
Shoe Size
(US Men)
Shoe Size
(US Wom)
Shoe Size

Cuff Height: Ankle 

Fabric Type: Wool / Wool Blend 

White - Medium

Mfg PartNum: SW001418122-M 

White - Large

Mfg PartNum: SW001418122-L 

White - X-Large

Mfg PartNum: SW001418122-XL 

Black - Medium

Mfg PartNum: SW001418001-M 

Black - Large

Mfg PartNum: SW001418001-L 

Black - X-Large

Mfg PartNum: SW001418001-XL 

Graphite - Medium

Mfg PartNum: SW001418018 

Graphite - Large

Mfg PartNum: SW001418018 

Graphite - X-Large

Mfg PartNum: SW001418018 

Ordered by Most Relevant First
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Reviewed 11/17/2020
by @rt
Daily Commuter
Overall Rating
Great for training

I love these socks. Bought them for the running. They are actually durable and comfortable. I cannot say that they are so breathable, but they are comfortable enough for 1.5-2 hours of training and don't rub my feet. I lack the compression in these socks to be perfect for my goals.

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