The NSA Aluminized Glove features the leather palm, 16 oz. aluminized Rayon back and 12 oz. knitted wool/cotton liner, straight thumb, and aluminized back provides radiant heat & molten metal protection. The fabric meets ANSI/ISEA 105-2011 standards for abrasion (level 4), cut (level 1), heat (level 3), and punture (level 5). ISO 9001 Certified.