I definitely choose black sneakers, white is the swelling color, and the shoes are big.

There is a book called Color Psychology, which says that black is the representative of shrinkage color, which makes objects look smaller than they really are.

In the same way, wearing black clothes has the effect of slimming. For example, if a girl wears black stockings, we will think that her legs are thinner than usual. In fact, this just takes advantage of the shrinkage of color, and black is thin.