So these are the soles of my oldest pair of trainers. They are fourteen years old. They are kickers (you can see the red and green lines). They are awesome. They’ve become my cycling shoes now as they have holes in and look beyond shabby however! They don’t smell. They never have. They’ve been incredible really. They never smelt bad, were cheap(on offer for £25), have always been super comfy and have not fallen apart for 14 years. Possible the best pair of trainers ever.