n is big, and depth-millimeters count for a lot in pocket world. If you're a lady wearing jeans, this could make the difference in whether you need to bring a

n is big, and depth-millimeters count for a lot in pocket world. If you're a lady wearing jeans, this could make the difference in whether you need to bring a purse. For me, it makes the difference re: whether I need to carry a wallet at all, or whether I replace it with a phone case that has a pocket for this and my drivers license.