The premier RFL next-to-skin fit and feel, knit from lightweight synthetic THERMOLITE®. Enhanced boot connection, breathability and Darn Tough durability? Check, check and check.
- Performance Fit: No slipping, no bunching, and no blisters.
- Fine Gauge Knitting: Unprecedented durability and our unique “put it on, forget it’s on” feel.
- Fast Action Wicking: Pulls moisture away from skin. Fast drying.
- All Weather Performance: Cool in the summer, warm in the winter.
- Naturally Antimicrobial: Repels bacteria and odor.
- Guaranteed For Life: No strings. No conditions. For life.
- THERMOLITE®: Insulated material specially engineered to provide warmth and comfort without weight.
- True Seamless™: Undetectable seam fusion for an ultra smooth, invisible feel.
Ultra-Light: Our lightest sock for race day or anyone looking for a lighter-than-air feel from a tougher than hell sock.
Over the Calf Height: The name says it all. The ultimate height for keeping the outside—out.
55% Nylon, 42% Thermolite® Polyester, 3% Lycra® Spandex