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Say hello to an entirely new and totally comfortable natural running experience in the 33-FA™. ComforDry™ Lasting and a ComforDry™ Sockliner double up for unsurpassed underfoot comfort while Seamless Construction and the oblique-shaped Natural33™ last create a truly slipper-like fit and feel. New forefoot flex groove geometry and FluidAxis® complement the ultra soft AmpliFoam™ platform for smooth flexibility from heel to toe.Feature
Fluidaxis anatomically correct deep flex grooves have been aligned to the joints of the foot this innovative construction enables the shoe to recognize, adapt, and respond to the athlete's exact load and positional change from first impact to toe-off