Built with GlenGuard® Hi-Vis Static Dissipative Modacrylic fabric which is patented and inherently flame resistant. Designed to make safety vests cooler and more comfortable without sacrificing protection. The fabric is designed with a 10mm carbon core grid-shaped fiber which works to dissipate a potentially harmful static charge allowing safe work in potentially combustible environments., Hi-Vis Yellow with orange contrast binding. 2″ 3M™ Scotchlite™ Reflective Material. Non-conductive zipper front closure and open sides with adjustable snap closure. 27″ length. ANSI 107-2015 Class 3