The large forefoot Zoom Air unit is curved to bend in multiple directions, providing energy return and a flexible feel. A top-loaded Zoom Air unit in the heel adds cushioning. The foam midsole keeps the foot low to the ground, while the open-hole mesh upper offers durability. akron-inspired sole multidirectional traction pattern large forefoot zoom air unit top-loaded zoom air unit in the heel foam midsole open-hole mesh upper alternate colours on left and right graphic sublimation on insole fits small, recommend ordering a half size up