Looks like these are the original Asics Gel Domain shoes.
Note: This shoe was replaced by the Asics Gel Domain 2, as worn by Mohamed El Shorbagy.
I’ve seen these on Kylie Lindsay from New Zealand, who was wearing them at the Hong Kong Open.
Here’s Spanish #1 Borja Golan sporting these:
Image via SquashSite ∞
Here’s a yellow version:
German #1 Simon Rosner:
Photo via Steve Cubbins →
There’s also this red guy:
Simon Rosner again:
Photo via squashuk.com →
Racket: Oliver Apex RS-7
Shoes: Asics Gel Domain
Location: 2013 German Nationals
Women’s version in white and red:
Joelle King was wearing these at the British Open:
Not sure where to buy them yet, though.