H O M E FR Sleeves- 22"SKU: C6HK-AS2-22 (pair)Industries Electric ARC Industrial Design FR Sleeve with thumb hole 22″ full-arm coverage (Elastic top) 2- layer , 15.5 oz carbon knit Breathable Odor neutralizing Moisture wicking Inherently fire retardant Material Ultra C6 Black Knit 23 cal ATPV CERTIFICATIONS NFPA 70E/ASTM F1959-1999