UA offers one of the very best in comfort and durability for men’s training with the SpeedForm Phenom . Innovative UA SpeedForm® technology delivers zero distraction while training ArmourVent™ mesh upper delivers true breathability in a light, stretchy, durable, fast-drying fabric Internal TPU heel counter for greater stability Smooth, ultrasonic welded seaming with Bemis tape for next-to-skin support & comfort Molded 4D Foam® footbed conforms to your foot's exact shape, eliminating slippage Full-length Micro G® foam turns cushioned landings into explosive takeoffs Strategically cored midsole extends higher onto the foot for better lateral stability Aggressive traction outsole designed to stabilize & propel you in any direction