Wildland Hoods are NOT intended for structural firefighting as they are NOT NFPA compliant (to current standards) or UL CertifiedShroudSKU: WLS-2-INTC6PWBLK-9Industries Wildland Design One piece Adjustable Velcro closure with elastic inserts allows for a custom fit 2-ply Ultra C6 Interlock Shroud with 2-ply Ultra C6 knit mouth shield insert One size fits all Do not modify, change, or alter you shroud in any manner Material Interlock C6