Flamestretch® Sock System 

The Flametretch® Sock System combines an inner low-profile wool sock with an outer over-sock for a system that provides comfort and support in all normal and wet conditions. The inner sock, by Darn Tough, has excellent moisture management and stays warm while wet. The outer sock is constructed with our proprietary Flamestretch® brushed-back knit fleece fabric that features Dupont™ Kevlar® and Nomex® brand fiber – the first flame-resistant fiber selected for use in military uniforms.