Under Armour Kids UA BGS Speedform(tm) Fortis (Big Kid) 100% Synthetic Imported Synthetic sole Innovative UA SpeedForm technology delivers zero distraction while running Seamless heel cup with foam collar for a locked-in, anatomical fit Smooth, ultrasonic welded seaming with Bemis tape for next-to-skin support & comfort Full-length Micro G foam turns cushioned landings into explosive takeoffs Added cushioning in the heel & strategic flex grooves in the forefoot work with your natural stride