In any dog store, you'll most likely find a wide set of leashes to choose from, and most of them differ in pattern, material and, of course, price. However, appearance aside, are they truly that different, or are they equivalent to each other? In the first case, why would you choose one over the others? Are some of them better for particular breeds? For instance, would a leather, more resistent leash be better for bigger breeds, or are woven leashes good enough?