CCM Ribcor 74K Hockey Skates feature Injected Quarter Package Technology with Synthetic composite for a durable boot with structural stiffness. Brushed Micro-Fiber liner with Durazone Abrasion Protection. 7mm Felt tongue with embossed lace-bite protection. Reinforced injection outsole with exhaust system. CCM footbed. Speedblade 4.0 Holder for increased angle for strides & cornering. Speedblade Stainless Steel runner for a long lasting edge & long-term performance.