Darn Tough RFL Thermolite OTC Ultra-lightweight Men's Socks

A next-to-skin fit and feel, knit from lightweight synthetic THERMOLITE® the Darn Tough RFL Thermolite OTC Ultra-lightweight for men offers enhanced boot connection, breathability, and, of course, legendary Darn Tough durability. This is a no cushion sock for a smooth interface between you and your boot, the sock of choice for men who prefer a synthetic sock in a custom fit boot.