The CCM Tacks 5052 skates are a great value for a skate at this pricepoint. You are getting plenty of the high end performance and stiffness features of the higher end Tacks skates at a great price! CCM's new ATTACKFRAME design is featuerd on the 5052 skates. This refers to the carbon twill composite in the heel and eyelets which store energy and release in stride. This is meant to bring you the most explosive five steps possible! The Formula T5 foam core works with the ATTACKFRAME to not only bring you a stiff, protective boot, but it also provides you with the durability for extended use. The SpeedBlade 4.0 holder has been featured on the Tacks skates because of it's success on the RBZs. The SB 4.0 holder is 4mm taller, allowing you a 10% better turning radius on all turns. The 7mm felt tongue is preferred by many pros and will make sure that you avoid lacebite and have a comfortable skate every time out!