I've used these for 3 to 4 years for about 20 days a year. My feet have always felt great at the end of the day- very comfortable but also high performance and great connection with the skis. Best feature is you can remold with heat to customize them to your own feet.
-Custom-moldable shells adapt to feet for a superior fit that eliminates pressure points and improves performance; requires specialized equipment best done by boot fitters
-Rigid lower shell provides power transmission where it's needed in the heels, along the sides of the feet and in the binding contact areas
-Supple upper shell offers appropriate rigidity above the instep, in the progressively flexing cuffs, and in the supportive and flexing backbone of the shell
-Oversize 24mm pivot between bottom shell and upper cuff results in greater transmission and power distributed throughout the sole of the boot compared to typical 8mm pivots
-4 micro aluminum buckles are lighter than traditional buckles and articulated for comfort
-A stiff flex index of 120 provides the power transfer appropriate for intermediate skiers
-Flex adjustment system allows for enhanced comfort