How hard do you charge If you think you're worthy, you should probably check out the Dalbello KR Pro ID Ski Boots. With a super stiff 130 flex tongue, and fully thermo moldable I.D. Thermo Pro Liners, this beast delivers precise control and response in all conditions. For folks who like to huck big cliffs, this boot also comes with an interchangeable anti shock bootboard, providing smooth, soft landings. When you need a more playful flexing boot, change out Dalbello's stiff 'C' tongue for the slightly softer 'B' tongue, included in the box. The Dalbello KR Pro ID Ski Boots are a reliable, bomber boot, fit for big mountain ballers.