There have only been a couple of examples of white or off-white hose that I've thought looked pretty darn good, and this is one of them. In both cases, what I thought made them work was the cable pattern. It really distinguishes it from plain old "white socks".

Of course, with that masculine pose and bulging muscles, your look says to the world, "Oh yeah? I dare you to say something about my white hose and flat cap!"