One design idea I had in mind is the flexible multi shoe size idea. Basically the idea is to have a shoe that can fit two or maybe three close sizes. If I’m size 42 then it would fit size 41-43 like socks. But not the tight fit as you get with a sock. I have no idea what is a good solution for this idea. Maybe one could use an adjustable screw solution.
Now that I was thinking about shoes I wondered because we have many very talented African runners. If its possible. Would it not be a good idea if we have shoe design also coming from let say Ethiopia and Kenya or other countries in Africa?