The upcoming Firewalker Boot Sock by FITS is not only FR, but also Berry compliant. Verified to NFPA 1971, 2018 Edition Structural and Proximity Firefighting Standard, it is made from 69% Merino Wool, 24% Nylon, 4% Polyester and 3% Lycra® Spandex. The Merino content offers inherent FR, moisture and odor control. The Firewalker also incorporates FITS’ proprietary features; Heel Lock® provides heel security that limits the chances of a blister when combined with a properly fit boot and their Dynamic Toe Cup® limits the amount of material in toe box to prevent bunching in a critical area of the foot.
For more info, contact John Siver II, john@fitssock.com.