Our hands-down favorite sock. Ultra-thin to fight friction and keep you feet dry and happy. Frees up space to keep your foot circulation flowing. You won't be disappointed.
### Darn Tough Says: ###
Breathe easy. Bringing together smooth Merino Wool feel, next-to-skin fit, flex and fatigue-zapping arch support, and targeted venting — the ultra-lightweight RFL is the sock experience your hard-charging feet have been dying for, lap after lap.