The Radical Pro Boot's HOJI Lock System delivers 60 degrees of cuff rotation for the skin track without giving up ground on the descent, backed by a 120-flex Grilamid(R) shell with a glass-fiber-reinforced cuff. A Driving Spoiler 2. 0 and Flex-Tongue carry that stiffness into ski mode, so the transition from touring to downhill doesn't cost the power a freeride boot would deliver. What Our Gearhead(R) Experts Are Saying:"I locked into ski mode at the top of a couloir I'd just skinned up and the boot drove into the first turn with the same stiffness I get from my resort boots. Getting back into walk mode at the bottom took one motion instead of fighting a buckle."