The Ribcor 50K Ice Skates are a premier skate from CCM. CCM has taken the previous Ribcor boot and had its researchers beef the skate up to include some of its newest technology, including Advanced Pump Technology that battles any looseness you might feel during a game. The SpeedBlade 4.0 holder that CCM features on the Ribcor 50K skate puts you 4mm higher than previous holders, providing more power and explosion out of every turn. The SpeedBlade 4.0 secures the Speedblade black runner, which is a sleek, flat black color, that offers longer edge life than traditional steel and reduces drag. When it comes to comfort, CCM features the Ribcor Elite quarter package with a heat-moldable FlexCore and composite midsole and carbon composite outsole. A Griptonite footbed with dual zone liner as well as a TriGuard tongue are also featured.