For fitness For clarity For your next PR No matter the reason you run the Adizero Boston 10 Shoes help you chase the fastest version of yourself With more cushioning than the average marathon shoe the midsole mixes Lightstrike with Lightstrike Pro Throw in the snappy feel of the ENERGYRODS and the result is an ultraresponsive ride that delivers raceday speed every time you lace upRegular fitLace closureLightweight mesh upperHeel paddingLightstrike and Lightstrike Pro cushioningWeightnbsp84 ouncesMidsole drop 8 mm heel 21 mm forefoot 13 mmContinentaltrade Rubber outsolePrimegreen