CCM Tacks 9060 Hockey Skate features Metaframe Technology with synthetic composite in the quarter package Speedcore 1 Stiffness for a rigid thermo-formable core an HD Micro Fiber liner with Durazone Abrasion Protection a 7mm felt tongue with embossed lace-bite protection a concave reinforced injection outsole with exhaust system an anatomical response footbed SB4.0 holder and SB Stainless runner.