HT-056 To be worn over a helmet (not included), and with a one-piece neck guard, this is an ideal layer of protection against radiant heat or splashes of molten metal. Made of 500gsm aluminised para-aramid fabric sewn with aramid thread. Fits most standard helmets (high heat helmets recommended). One size. EN ISO 11612:2015 A1, B1, C3, D3, E3, F1 Downloads: Please note: Backorders for this item may be up to 3 weeks.