While regular detergents are okay at combating the stink, they can leave high-performance materials weighed down and less breathable. This is where the Nathan Sport-Wash Blox come in. They're designed to work with all high-efficiency washing machines, and they'll clean even better than the stuff you get at the grocery store, but they will also preserve the breathability and wicking nature of the high-performance shirts, shorts, socks, and whatever other clothes you need to get the most from.