Breathable precision knit seamless mesh with padded collar and tongue. Supportive heel counter for added comfort. X25™ open-cell foam has high levels of cushioning in thinner layers, perfect for high-impact sports. EVA spacer to customize the fit. Lightweight EVA midsole with rubber tread inserted for extra grip and traction on any surface. OrthoLite®, Double Insoles, A5500 pending.