3FX54B9 – Compression Flame-Retardant Accessory – Compression fitting. Contoured to face and head, fits close to to both but does not constrict. Moves with the wearer for better mobility. Allows for unrestricted movement. Ideal for temps between 10° – 40° F. Compression FR Accessory – Compression FitWeight – 6.0 oz.Patented blend of Modacrylic, FR Rayon & SpandexASTM D6413 StandardNo Melt/No DripSuperior Moisture-WickingQuick DryingAg47® Anti-Microbial ProtectionClean Seam® Next-To-Skin ComfortDurable and BreathableWon’t Shrink100% USA Made & Berry Compliant!!!