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 fabricPleated front to expand for full protection6 oz. Excel FR ComforTouch Twill fabric (88% Cotton, 12% Nylon)Each pack includes 5 face coverings One size fits most with adjustable fit CAT: Arc Rating ATPV 9.1 cal/cm2 *Face coverings are non-returnable. National Fire Fighter...