Anodising is an electrochemical process whereby a metal is submerged in an electrolyte solution and an electric current is applied, transforming the surface of the metal to form an oxide layer. 

The titanium oxide layer gives the perception of colour due to an interference phenomenon, similar to a prism. Light reflects from both the oxide layer and the underlying titanium at different angles and those reflections interfere with each other. Certain wavelengths of light cancel each other out or combine, so that the remaining light is perceived as colour.

Anodising is remarkable because it involves a enhancement of a naturally occurring phenomenon without the use of dyes or chemicals. The higher the voltage, the more oxidised the surface becomes and the deeper the colour changes!

As anodising involves a reaction of titanium oxide rather than a paint or plating, it cannot chip or peel so you don’t have to worry about how your products will age. In fact, anodising actually increases resistance to corrosion and wear. Nevertheless, as we are just increasing the natural oxide layer, the layer will start to wear after use so colours may change slightly over time, adding even more charm to your gear.