Thin White Line Crew Sock

Our Thin White Line sock represents EMS/EMT/Paramedic Professionals who are often the first on the scene to selflessly save the lives of others. Once a call is made EMS/EMT/Paramedics are sent to the scene and do as much as possible to help victims.  FirstOn Socks are 100% Made in the USA and are manufactured with 100% USA made fibers!    Materials Our products are made with a combination of Nylon, in-house created LYCRA® Spandex, and FYnesse®STA-COOL® Polyester to prevent blistering. We also use a copper infused fiber called CuTECH®, which is a fiber composed of copper and polyester that enhances circulation and reduces bacteria. We utilize Silver Tech Anti-Microbial which helps the sock continually fight bacteria on the inside and outside to prevent foot odor and infection.    C4 Technology C4 Technology was designed by the incredible FirstOn Research and Development Team to bring our customers the ultimate performance sock. The 4 C's stand for Comfort, Contouring, Compression, and