The Asics Gel Resolution 4 are billed as tennis shoes, but I’ve noticed them on a couple different squash players recently.
I really like this color scheme:
Julian Illingworth has been sporting these. Here he is at the US Open:
Here’s another color scheme, black and green:
Kuwait’s Abdullah Al Muzayen was wearing these, also at the US Open:
Oh, here’s a nice-looking one in red and black:
Here’s another one in a more conservative color scheme: