Trail runners are perfectly suitable for the Camino. The terrain is a mix of soft path, forest trails, a few rocky sections and a fair amount of sidwalk or paved pedway. Most people find that the sticky tread and light profile of a trail runner works perfectly. Trail runners are also preferable to hiking shoes because they’re lighter, more flexible and cooler on hot days. You don’t generally need the super stiff sole of a major hiking boot, but they can be a good idea if you have weak ankles. If you have a favorite pair of hiking books that you can’t live without, then wear them. It’s all about your comfort.