The Smartwool Phd Cycling Ultra Light ¾ Crew Bike Sock is the most popular style for cycling offered by this company. It features the 4-degree fit system provides secure fit around the heel, arch and instep so this sock stays in place for all day performance.
Smartwool fibers control moisture, temperature and order adding comfort while the WOW technology increases durability and reduces shock and abrasion. There are strategic mesh zones for maximum ventilation.
Smartwool PhD Cycling Ultra Light ¾ Crew Sock
- Content: 59% merino wool, 37% nylon, 4% elastic
- 4-degree fit system for all day performance
- WOW (Wool on Wool) adds additional layer of SmartWool to protect heel and forefoot against shock and abrasion
- Made in the USA of New Zealand Zque Merino wool
- Variety of colors
Smartwool PhD Cycling Ultra Light ¾ Crew Sock Reviews
Rating: 




Not many reviews but one person stated I’ve never paid this much for a cycling sock before and I’ve never owned a 3/4 crew sock before. I am really happy with both of these choices. This is the most comfortable sock I’ve ever worn for cycling. I know it’s just a sock, but as soon as I slipped these socks on my feet and put on my cycling shoes, my feet felt really comfortable.
The Smartwool material just feels great, almost silky and the way they are constructed gives nice support to the foot. The wicking is great, as is usually the case with wool or mostly wool clothing. If you are looking for high performance the Smartwool PhD Cycling Ultra Light ¾ Crew Sock should be on your shopping list.

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