Darn Tough

Darn Tough RFL OTC Ultra-Light Womens Ski Socks

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Size Chart

Racing. Fast. Light. Whether you're a competitive skier or rider or an enthusiast who doesn't like anything in your way, the Darn Tough RFL is the lightest, warmest, smoothest fitting mountain sock around. Mesh panels improve breathability, lighten the sock and ensure a streamlined boot fit. Reinforced high-wear zones are built for 100-day seasons plural. And as always, Darn Tough backs up its tough promise with an unconditional lifetime guarantee.


  • Cushion: No Cushion
  • Weight: Ultra-Light - Darn Tough's lightest sock for lighter than air feel
  • Height: Over-the-calf - Covers the calf, sits below the knee
  • Fine Gauge Knitting
  • Naturally Antimicrobial
  • Moisture Wicking
  • Regulates Temperature
  • Made in the USA
  • Lifetime Guarantee


55% Merino Wool, 42% Nylon, 3% Lycra Spandex

Sock Height

Knee-High Height Sock

Sock Cushion

No Cushion Sock