Steel Crusader Medieval Helmet - Wearable Armor Costume By Nauticalmart Made of 18ga steel with heavy brass trim. This reproduction is made of mild steel and will fit most adultsTo cope with this danger, armor and weapons evolved. This was before the advent of the visor, so knights would typically wear one larger helmet over a bascinet (or open faced helmet). Then, if battle got too hot, they could take off the larger helmet. This is a representation of one of those larger helmets. A great helm or barrel helmet, as they are called, would protect the wearer from many different weapons. You are sure to be safe in our excellently reproduced Crusader Helmet as well