Visored Great Helm 13th Century German Flat Top Plate Armor Helmet 18G Steel Overall Height: 13 Inches. Circumference: 30.75 to 26.5 Inches. Helmet Weight: 3 Pounds &amp; 9 Ounces, (3.56 lbs). Designation: Visored Great Helm, 13th Century, Crusaders, Germanic &amp; European. Materials: Handforged Carbon Steel, Plated 18ga &amp; 19ga, Riveted w Reinforced Visor Bands. Size: Fits Adult Sizes. Finish: Satin Chrome, Preservative Oiled Surface. This is a very well made, sturdy helmet for reasonable functional protection based upon historical 13th century weaponry, costume, reenactment, and display. Despite having some rough edges here and there, each handmade helmet is unique and may have slight differences between any two pieces. We recommend you wear a cotton padded coif (head covering) under the helmet for comfort and absorption of kinetic energy, and possibly consider using an adjustable leather suspension depending on fitment.