This size 6.5 ring is woven in a European chainmaille weave using over 120 steel rings.
Stainless steel is hypoallergenic, low maintenance, and extremely durable. It will never rust, tarnish, or color your skin. You can wear it in the shower, pool, or ocean without issues.
European weaves form one of the largest familes of weaves known. They include the classic chainmail weave used in european chainmail armor but also extend to dozens if not hundreds of modern weaves that relate back to that pattern.