Complete with it's injected composite quarter package, heavy-duty micro-fiber liner and reinforced injected outsole, the Ribcor 66K skate offers skaters with the support and comfort needed to take advantage of every stride. Features: Durable boot with structural fitness thanks to its injected composite mesh skin. Heavy duty micro-fiber allows for comfort and is highly-resistant to wear. Felt tongue with embossed lace-bite protection. 7mm felt with reinforcement layers for increased comfort and protection. Reinforced injected outsole with exhaust system for a solid energy transfer. CCM anatomical response provides great support and comfort. SpeedBlade 4.0 provides proven durability with increased attack angle providing greater strides and cornering. SpeedBlade stainless steel provides a long-lasting edge for long-term performance.