The Spira Odyssey Women is a well cushioned training shoe that providesexcellent forefoot and heel cushioning. The patented WaveSpringtechnology of this women's running shoeis located in both the heel and forefoot for maximum impact absorptionand energy return that will not break down over the life of the shoe.The mid-foot is supported by a molded external shank support structureto aid in torsional stability. This Spira running sneaker also has aremovable, 5mm molded EVA footbed. Get the response your looking for onyour run with the Spira Odyssey Women.