The men's Thermolite RFL Over-The-Calf snow sock is Darn Tough's thinnest, lightest mountain sock. Coveted for its minimalist construction, the RFL is made with vegan friendly Thermolite® fibers, for a streamlined fit, reinforced high-wear zones and all-day insulation. All Darn Tough socks are knit in Vermont and come with an unconditional guarantee.
Features
- Cushion: no cushion
- Weight: ultra-lightweight
- Height: knee-high/OTC
- Performance fit for no slipping, bunching or blisters
- True Seamless™ toe for a smooth, invisible feel
- Lightweight vegan-friendly Thermolite insulates and protects feet
- Made in Vermont, unconditionally guaranteed
