Go the distance, then further

Fabric tech

Fiber First®

Moisture Wicking Technology
CUSHIONING
Minimum
Minimum for a thin profile
COMPRESSION
Firm
Firm to reduce fatigue
best for
  • Running
  • Cycling
Y-shaped Heel Creates a snug fit that moves with your foot without bunching or slipping.
Knee High Cuff Height A knee high height with firm compression provides support to help reduce fatigue.
Channeled Upper Increase breathability to help keep feet cool.

“I never have to worry about blisters. It takes several thousand miles of running to wear one out. I couldn't imagine wearing another sock.”

– Olaf Wasternack, Nashville
Aspire Knee High
Aspire Crew
Pursuit Crew
Description Ultra Thin Ultra Thin All-Season Merino
Compression Level Firm Firm Moderate
Cushion Level Minimum Minimum Medium
Composition
  • 46% Olefin
  • 43% Nylon
  • 11% Spandex
  • 79% Nylon
  • 18% Olefin
  • 3% Spandex
  • 62% Merino wool
  • 35% Nylon
  • 3% Spandex
Msgr. McGolrick ParkBrooklyn, NY
Palisades Interstate ParkAlpine, NJ
  • Engineered with an ultra-thin profile to deliver unparalleled fit & feel
  • Signature Olefin fibers wick moisture, keeping your feet cool, dry, and blister-free
  • Grips the contours of your feet to support the arch and help reduce fatigue
  • 46% Olefin / 43% Nylon / 11% Spandex
  • Machine wash cold. Tumble dry low. Do not bleach or iron.

Swiftwick socks are made to endure through thick and thin. The Lifetime Performance Guarantee is our commitment both to our products and to our customers, ensuring our socks stand the test of time.

If your Swiftwicks wear out for any reason, we’ll replace them. Simple as that.

Need to start a warranty claim? Click here.

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Aspire Knee High

Ultra Thin

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Swiftwick
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Free Shipping AND Free Returns Guaranteed Lifetime Performance

The Aspire offers moisture-wicking, blister protection, breathable support, and firm compression to reduce fatigue on runs. Engineered to meet the unique demands of running, it stabilizes muscles below the knee and maintains performance through sprints, jogs, marathons, and beyond.

Firm
Contoured compression®
Fiber First®
Moisture Wicking