Starting with the build of the Vapor 2X Pro Hockey Skates, the quarter package is built with Bauer’s new Dynaflex system. Rather than going with a highly stiff boot, this design allows for a very slight amount of flex within the boot, allowing it to conform to the natural shape of your foot, which helps with overall performance and comfort! This new design is constructed out of Bauer’s 3-D lasted Carbon Curv Composite material with an X-Rib pattern on the back and Comfort Edge padding within the boot.