Blazing speed, advanced side-to-side movement and head-turning looks made up Reebok's Ribcor ice skates. Why would the next in line be any different? Providing you a step up from the 2013 20Ks, it feature Ribcor flex + quarter design, which enhances the overall support and durability that you get from your skates. The EPP foam core is receptive to heat molding and helps increase stiffness throughout your boot. Similar to the Ribcor's liner, the 30Ks' interior is surrounded by dual zone liner with Duratex grip and tacky nash, which allows for a much better lock on your heels to keep the skates moving along with your feet. The top of your foot doesn't sacrifice comfort for protection either, as the 7mm felt and EVA foam tongue provides you with top-notch fit and supreme comfort. The vented lightweight low profile carbon and glass composite outsole provides you with an improved energy transfer to go along with a superb reactionary feel. Your feet will feel steadier than ever and able to move side to side without worry of blisters or soreness. The SpeedBlade 4.0 holder provides you with supreme speed and enhances your turning radius up to 10% for an outstanding range of attack