The CCM Ribcor 44K (White) Hockey Skate features the Advanced Pump™, which is the most efficient Pump™ to date for a personalized fit. The Quarter Package is Ribcor Flex, a lightweight structure for enhanced forward flexion and durability. The core in this skate is a lightweight elite synthetic core to enhance support & durability. Dual Zone lightweight Tricot liner for a comfortable fit & durability. 2-piece high density felt tongue provides for an excellent fit & comfort where its needed. A vented low profile injected outsole maximizes energy transfer with moisture management to keep your feet dry. Molded CCM Footbed for comfort & durability. Speedblade 4.0 Holder increases attack angle to provide greater strides and cornering capability. The Runner is speedblade stainless steel for a long lasting edge and long term performance.