I bought these to replace my beloved Trezeta's that I can no longer find in this style.  They came in 2 days and thankfully the fit is right on. I rarely buy shoes for myself over the net so I had some concern there.  They do seem a little lighter than the Trezetas and seem to ventilate pretty will so far.  The fit and support are also  comparable.  Can't attest to any water proof virtues yet, but I will update if there is a problem there. Overall I'm very pleased with them after two days.