The pro shop (it's a technical term; I don't think these shops are very "pro") I used to go sells some racket manufacturers' shoes (like Wilson, Prince and Babolat). It's on the 2nd floor, Kornhill Plaza, Tai Koo Shing. However if you don't live around here, don't bother to go there, as I said, it's not very "pro". Are there any other "pro shops" around your neighbourhood? There's bound to be one or two that sell Wilson shoes.
By the way, why don't you try Nike or Addidas, they are famous and popular (and expensive) for a reason: they are awesome.