Flat Tire Footwear uses crumb rubber from recycled scrap tires to create a totally unique comfort and shock absorbing sole.  The specially designed soles of Flat Tire Footwear are loaded with Crumb Rubber, the same material used to cushion the surfaces of playgrounds, running tracks, and stadium surfaces.  Flat Tire is the first brand to bring the shock absorbing properties of crumb rubber to footwear. CrumbTech keeps tires out of our landfills and puts comfort under your feet.