This helmet is HANDMADE from 18-gauge mild steel, lined with a comfortable, secure leather liner. A circumference of approximately 66 cm (without liner) makes it fit almost all head sizes (63 cm with liner). The maximum length of the helmet (from front to back) is about 34 cm and the width of the neckplate is about 25 cm. The cheek plates measure about (15x12) cm. A sturdy chin strap with a lovely buckle ensures your helmet stays in place during battles. Note: This product is carefully coated with a layer of oil when packaged that acts as a temporary (protective) layer against corrosion (rust), which can easily be wiped off using any oil remover or even a dry cloth. Being in the legion, you need protection from projectiles and blows without impeding your vision or breathing! After all, you legionaries are well known for walking hundreds of miles on the road of the Empire from one battlefield to the other, and walking for miles has never been easy on anyone wearing a fully enclosed helmet. Pair it with one of our Lorica hamata to get an optimum combination for your next LARP or reenactment…a great look without hampering your vision and freedom of movement. The Roman helmet used during the Empire is the product of a slow evolution from the first bronze Italian helmet to the Celtic-influenced helmet used by the legionaries of Augustus, Trajan, Hadrian, and all other famous Roman emperors. The fact is that this legendary helmet proves surprisingly versatile, striking a perfect balance between protection and mobility.