Our chainmail tops are handmade, and have been designed and constructed by us. We primarily use the European 4-1 weave for the tighter weaves and the Japanese 6-1 weave for the looser weaves. The rings are anodized aluminum and EDPM rubber unless otherwise requested. The aluminum contains no nickel, lead or zinc and the EDPM contains no latex, making our pieces hypoallergenic and safe for most people to wear. If you don't see the style or color combination that you are looking for, please contact us and we will see what we can do to help.