Bulwark has a flame resistant solution to meet your FR protective apparel needs. Durable FR 100% Cotton These fabrics are made flame-resistant by application of a flame retardant finish. 100% COTTON. 100% COMFORT. 100% FLAME RESISTANT. Excel-FR® cotton garments offer unbeatable protection for foundries, flame cutting and welding, as well as electrical utilities and the chemical, oil, gas and petrochemical industries.