Under Armour Boys' Grade School UA Speedform Apollo 2 Reflective Running Shoes Synthetic Rubber sole Innovative UA SpeedForm technology delivers zero distraction while running Seamless heel cup with foam collar for a locked-in, anatomical fit Smooth, ultrasonic welding seaming with Bemis tape for next-to-skin support & comfort Reflective perforated upper with ultrasonic seal for durable breathability & 360&#176; visibility for increased safety Padded liner under tongue adds comfort