The ring comes in about 100 colors. The website pictures look like something out of a Patagonia catalog. People who buy Groove rings spend the majority of their time rock climbing, camping in remote areas, walking on their hands down highways, and catching world-class tarpon on fly rods. I tried to scroll through all the rings and lost count. But there are rings for sports teams, first responders, and American patriots, and others that feature camo, topo maps, and what seem to be tire tread patterns. Michael Waddell’s favorite model? Bone Collector, which comes in two colors: midnight black and midnight black with bright green on the inside of the ring (shown above).