The FOX Training shoes are not ideal for riding, but that's not what they're made for. Athletes need to train and that's where the Fox Motion shoe is designed for. It comes in different models like the Varial, Scrub Fresh, Concept, and the Motion Elite.
If you want to support a brand that supports BMX over brands like New Balance, Asics or Saucony, give the FOX shoe collection a try. Plenty of models to choose from: