Innovative UA SpeedForm technology delivers zero distraction while running Foam infused into heel to provide better lock down & plush comfort Smooth, ultrasonic welded seaming with Bemis tape for next-to-skin support & comfort Perforated upper with ultrasonic seal for durable breathability Arch reinforcement construction for precise fit & foot guidance Embedded sockliner within cavity of midsole for added cushioning, moisture wicking & seamless comfort Dual-layer midsole combines Charged Cushioning on top of Micro G foam for the ultimate blend of cushioned support & explosive responsiveness Anatomical rubber outsole for natural flex & durability