Bauer Supreme Mach Intermediate Ice Hockey Skates 6.5 Fit 2. Bauer Supreme Mach Skates. Were built for the north-to-south power skater who wants maximum energy transfer and range of motion for a truly explosive stride. While the new 12K Carbon Curv composite boot is even lighter and more responsive than the Ultrasonic’s, the new AMP System helps players achieve a greater and more effective range of motion from the forward flex through to the apex of the skating stride. Skates are in mint condition with very minimal wear. These come with LS Carbonlite steel. See pictures for more detail. 12K Carbon Curv Composite Boot. Premium carbon fiber built with an advanced carbon layering process gives players an even lighter and responsive boot built for pure power. With a new AMP Flex facing for 15% greater energy load and the AMP Flex Tendon Guard for complete range of motion, the Mach delivers maximum power output through every stride. The outsole and boot integration provides better energy transfer by increasing stiffness in the lower third of the quarter package without compromising mobility.