I agree with others that snaps will last longer than the velcro. The wear also depends on the style. With use, the layers of the Elementals will get holes. This doesn't effect function but they just don't look as nice with holes. The microfiber of the freetimes and 4.0s wear pretty quickly. Although again that doesn't necessarily affect function, they just don't look as nice. As long as you get a good fit around the legs and make sure none of the inner fabric is showing, leaks are uncommon. After a long time of use or if you use too much detergent, you can get build-up leaks, which are typically pretty easy to reverse.