I bought this pair after having had the Asics water proof running shoes... To begin with there are not so many water proof running shoes out there. These are very good and truer to their size than Asics. For example, in regular running shoes I am a 7.5 but for Asics I had to buy an 8. With this ones I bought an 8 but I think I would have been better off with a 7.5, they tend to be a little large. But with these said, they are amazingly comfortable, I would say definetly more comfortable than their Asics counterparts. Great buy!