Aluminum anodizes beautifully, machines quickly with minimal wear on the tooling, and is durable enough to withstand a lifetime of use. It's also less expensive, hence the lower price than titanium, bronze, and copper. Because of the wide array of color options offered by our anodization partners, this will be a revolving door of colors so be sure to keep an eye out.
Pro-tip: Customize the clip to make it extra special.