Rapid Access — The Rapid Access system features a cuff that swings open on a hinge. Once the cuff is closed, it is easier to buckle and fits the leg more precisely and comfortably. The end result is extreme ease and comfort, while improving control and performance.

Reactive Flex System with Inserts — The Reactive Flex System provides flex and rebound in the shell. Special cuts in the shell allow a gradual, progressive forward flex followed by an elastic rebound of the shell. The flex can be adjusted by inserting flex inserts into the cuts. Two inserts are available in different degrees of rigidity, allowing customization of the flex to your preference.

A.V.S.® — “Anti-Vibration System” reduces vibration by using special "Tec-Sorb" inserts in the heel and toe (located internally) of the boot sole which filter shock waves through the sole to the foot. The reduction of vibration, in turn, increases comfort and performance while reducing fatigue.

Dual Pivot — This proven patented device allows alignment in two dimensions addressing both performance, and fit and comfort in one device. The axis alignment function is used to increase edge pressure efficiency for performance. The cuff alignment function is used to match the lateral angle of the cuff to the lower leg anatomy for fit and comfort. Dual Pivot is the only system available that allows these 2 adjustments to occur at the same time and work together as a single unit.

Ultrafit — The difference felt in an Ultrafit liner is a softer more comfortable initial fit while providing better security of the foot while skiing. The milling process enables these two functions to occur because uniform density is maintained in the EVA material. This uniform density provides equal cushioning across the entire foot while allowing the EVA material to rebound to hold the foot securely. The milling process allows Ultrafit liners exceptional heat molding capabilities for further personal customization because it maintains all of the gases in the EVA material, allowing it to be moldable.