A string at the top of the shaft to tie back ensures these bad boys won’t ride down when making your way downtown. Mucha durabilidad de la suela y excelente traccion. This is a great thing, but it also kind of makes shopping harder because we have to narrow it down somehow. Bio-based materials can offer advantages to all three phases. I also like support shoes to be flexible so as to flow through to an easier toe off after the rear support systems and clearly the GT 2000 10 in hand was flexible.