When it comes to justifying shoe purchases, one must question the number of times you will wear the shoe, how many outfits you can wear them with, and if the shoe will actually accomplish the purpose you're buying them for. In this case, if you're looking for shoe that doesn't compromise speed or stability the Newton Motion has got you covered. The lugs on the bottom of the shoe do have a purpose – they propel you onto your toes each stride. There are a limited number of color schemes, but it you have flat feet or a medial side pronation, slippin' some bills over to Newton might just be worth it.