Foil-head shavers offer some of the closest shaves possible for an electric, but they have one problem: the heads are literally steel foil. Over time, wear can affect even steel. But if you make it thicker, you lose the advantages of foil's thinness. Enter titanium, a substance so hard, machinists prefer to etch it instead of cut it. A thin layer of titanium coats the foil head, slowing the effects of Father Time. A full charge can do up to fifty-five minutes of shaving time. Washable, too, for easier cleaning.