The Scarpa Freedom SL Alpine Touring Boot is King of the Mountain in the Scarpa freeride line. It's the burliest, with a 120 flex index, but almost a pound lighter than the standard Freedom. The SL also uses a lighter Intuition liner and more aggressive sole. Compared to Scarpa's touring boots, the Freedom SL is more versatile added alpine capability and it's stiffer and more powerful, but it does weigh more than the cream of the crop AT. It has a Ride Power Block that delivers frictionless motion for efficient climbing and locks in back support for superpower transmission on the downhill. For skiers who need a boot that can charge off the lift in alpine bindings or slip efficiently into the backcountry with Tech TLT bindings, the Freedom SL has few equals. And then there's the fit. The Pbax Rnew shell overlaps for gap less fit. Its Carbon Core technology wraps it around a bomber carbon frame for lightweight and allover stiffness for precision control. The Intuition FR Speed liner boot is molded with the shell for a seamless fit and optimally powerful performance, key in making the distinction between a competent alpineAT boot and one that kills it. The 101 millimeter anatomic last features Axial Power Control for lateral stiffness and sensitivity. The interchangeable Vibram sole gives you lugged tenacity when hiking over scree or down climbing into a rocky chute. You'll feel the advantage in an instant and respond with a peaceful mind. After all, you don't want to charge down a finger chute with already frayed nerves. This is called Freedom.