There is a limitation on the market for multi-surface distance running shoes that are easy to use, accessible, sustainable, functional on a variety of surfaces, not overly complex and costly and durable. A key feature will be 2-tiered retractable spikes. My goal is to use innovative design to solve or reduce these issues for the young modern performance runner, as well as reduce the need to purchase 6 or more surface-specific shoes per year. I need supporters with experience in complex engineering, sustainable, durable, lightweight materials and shoemaking.  Any aid is welcome!