A running shoe so smart, Sir Isaac Newton himself would be impressed. The men's Newton® Running Sir Isaac S is a stability guidance trainer designed to help you improve your midfoot/forefoot running style for more natural form. The Sir Isaac S delivers control of your late stage pronation to further improve your running biomechanics. With little effort on your part you'll find this hyper-intelligent running shoe intuitively guides your running form into the more efficient midfoot/forefoot running style.
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