For me, the thickness of the wallet is more the limiting factor. It doesn't bother me in my front pocket and because front pockets are so deep, there's no issue at all with the added length from having the double-stack of card pockets--not that it's too long for a back pocket, either. The added width--frankly I'm not sure there really is any, or at least nothing I've noticed. It's basically just wide enough to have the length of a credit card on each side, or a dollar bill stretch the whole width.