Under Armour Men's UA Speedform&Acirc;&iquest; Apollo 100% Mesh Imported Rubber sole Shaft measures approximately 2.75" from arch Innovative UA SpeedForm technology delivers zero distraction while running Seamless heel cup with silicone grip for a locked-in, anatomical fit Smooth, ultrasonic welded seaming with Bemis tape for next-to-skin support & comfort Perforated upper with ultrasonic seal for durable breathability Molded 4D Foam footbed conforms to your foot's exact shape, eliminating slippage