Title says it all. I am selling my Krypton pros from last year. Molded to my feet but never skied.
The Kryptons Pro's have inserts to install in the inside back of the shell that are used in conjunction with forward lean wedges. There are also two different tongues; ones softer and ones harder. I think there are 6 settings. Keep in mind that the listed flex from Dalbello's site is based on the stock liner and not the Gold ID. The Gold ID is about 15% stiffer so a 100-140 becomes a 115-160 flex. It's easy to change the flex around but it isn't something you would do slope side. Could easily be done in the lodge though. I say not slope side because you have to take the boot off to do it.