FR face coverings are intended for use by workers who are at risk for short duration thermal exposure on the job and are required to wear a face covering. Single-tie strap for adjustable fit made of double-layer FR fabric. Pleated front to expand for full protection. 6 oz. Excel FR ComforTouch Twill fabric (88% Cotton, 12% Nylon). Each pack includes 5 face coverings. One size fits most with adjustable fit.CAT2: Arc Rating ATPV 9.1 cal/cm2*Face coverings are non-returnable. National Fire...