For those that swim, cycle, and run competitively, this ring is for you.  The incredibly detailed ring is made in titanium in two separate pieces, one laser cut through and the other smooth against your skin then laser welded together to be seamless. It has options to be made in titanium or black zirconium.  Anodized titanium can be any of the anodized colors available.  While it is possible to anodize an outer surface, it would easily scratch, so it's best to be done only down in the grooves.  Note that cobalt chrome cannot be anodized, and black zirconium will remain black.  The ring is comfortable to wear and can be engraved on the inside.