Building on the success of the original M Series, Prince introduces the O Series. Rounder tubes maximize energy return for quicker acceleration and improved footwork.ColorsWhiteNavySilver TypeLow Tennis WeightApprox. 10.4 oz UpperBreathable synthetic leather upper for added comfort. MidsoleTPU Arch bridge for torsional stability. Triple density EVA midsole for stable heel landing and greater forefoot propulsion. OutsoleNon marking herringbone outsole SportTENNIS