The Darn Tough Men's RFL Thermolite Ultralight Socks are a premier RFL next-to-skin fit and feel. Made from lightweight synthetic THERMOLITE® they will keep your feet warm and dry. They provide enhanced boot connection, breathability, and durability.
No slipping, no bunching, and no blisters.
Fine Gauge Knitting
Fast Action Wicking
All Weather Performance
Guaranteed For Life
Fabric: 55% Nylon, 42% Thermolite® Polyester, 3% Lycra® Spandex
Height: Over the Calf