Hello, I alternate between Nike Free 3.0 (v2) and Asics Hyperspeed 4s. Both are wonderful shoes, light, flexible with a nice and wide toebox. The only thing is they both are suffering from quite a lot of wear (the Asics outsole is worryingly thin after just six months, which included training for a trail marathon). Can anybody recommend more durable replacements for these shoes, that have the bits I like, ie flexibility and low heel-toe drop?
