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SwiftwickPerformance Twelve Sock

Item # SWF000J

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Item # SWF000J

Muscle appreciation.

You don't have to be nursing an injury to benefit from compression — whether you're tapering before your 70.3 next week or riding through a hard interval set, you could benefit from the Managed Compression in Swiftwick's Twelve Performance socks.

Rising above the calf with a reinforced twelve-inch cuff, the socks' bodies are constructed with Olefin in a high needle knit while the wear-prone toe and heel areas receive durable T-66 nylon. Both fibers are adept at pulling moisture away from your feet quickly as you ride, and graduated compression through the sock stabilizes muscles and encourages circulation to promote recovery from your hardworking calves to the tiny, underappreciated tendons and ligaments of the foot.

Tech SpecsSize
Tech Specs
[toe and heel] T-66 nylon, [main body] Olefin
Recommended Use
cycling, recovery
Manufacturer Warranty


US MEN 3.5 - 6 6 - 9.5 10 - 13 13.5 - 16
US WOMEN 5 - 7.5 8 - 10 10.5 - 14 14.5 - 16.5
EU 35 - 37 39 - 42 43 - 46 47 - 49
How to Measure:
Use your shoe size to select the correct sock size.

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Best Socks

  • Familiarity: I've put it through the wringer

Swiftwick always makes the BEST socks and they last forever!

Unanswered Question

Are these as slick/smooth as the photo shows? They seem to be just what I am looking for. I dont like bulky or heavy ribbed socks.


  • Familiarity: I've put it through the wringer
  • Fit: True to size
  • Size Bought: Medium

Just buy it. It is my favorite brand of sock, winter and summer; running, walking, soccer, anything.. comfortable, keeps my feet dry and cool all the time.