my wife got a pair of the high performance women's brunswick shoes last season. not sure the exact name of them...classic maybe, they're dark blue and tan. anyway, when she started wearing them she noticed that they were turning the heel area of her socks dark blue. i figured the problem would probably go away, but here we are a year later and they still stain all of her socks dark blue...anyone experience this? if so, anything solve the problem that you know of?

thanks in advance.
Matt