nomex is a real world material, and its a fire retardant material its not ballistic proof, and all of bats suits are a kevlar nomex brand..i dont deny that his suit is durable but its up to the standard of taking a full hot and just shaking it off like it was nothing. and just like all bullet proof , materials it will be pierced eventually, thats why cops usually have a metal breastplate, in thier vests, and one in the back too....all of which is useless when blade rips his throat