I first saw these Adidas BT Feather shoes on Alister Walker and Chris Gordon at the 2012 US Open. They’re marketed as tennis shoes but they have non-marking soles. Which is good, because it’d be awkward if two elite squash players were marking up the courts.
These are a slightly older model, so it’s a bit difficult to find them for sale, but the stores below still have them, for now.
Here are some places to buy the white and black version (pictured above) that Alister Walker wears:
Buy (UK): amazon.co.uk
Buy (Germany): amazon.de
Now here is the black and blue version the Chris Gordon was wearing:
It’s pretty tough to find those blue guys for sale, but here’s a store in Germany that seems to still carry them.
Buy (Germany): sport-life.de