Doc Martens are already well known for their ruggedness and longevity, but this takes it to a whole new level. Each shoe in the new Dr. Martens For Life Collection ($130-$150) comes with a lifetime guarantee, including unlimited repairs for life. Of course, you don’t want you shoes out for repair very often, which is why they also feature a thicker inner core for the sole, and a highly resistant leather outer, called Hardlife, to extend their durability.