Medieval Chain Mail Shirt and Coif Armor Set (Full Size) Fit upto 3XL Long Shirt Round Ring Riveted Coif made from Aluminium Round Rings with Flat Washer, 10mm (Zink Plated ). This coif is hand-made from zinc-plated, riveted high-quality Alumiuium rings, 4 pattern. Ring diameter: approx. 10 mm. - Ring thickness: 1.6 mm. - Weight: 1.5 kg approx. We Do Quality check at each stage of manufacturing Use this Coif as a great Halloween costume.