Nordica(R) Gran Sport 10 boots combine the comfort and convenience of rear-entry liners with the flex index of a sporty performance shell. Ski/walk device automatically releases the rear cuff when the upper buckles are unlatched; the lower leg moves freely as in natural walking. But buckle up and flex forward and the boot automatically locks into ski position. Comfort Fit rear-entry liner is easily accessed and securely supports the foot and lower leg. Comfort Fit liners are heat-moldable for a custom fit; soft liner materials further enhance your day-long comfort. Where other boots have tongues, Gran Sports have seamless flex zones that provide bunch-free comfort under pressure points created by closed buckles. Shape and rigidity of Comfort Fit footbed optimizes foot position and support for comfortable wear all day long. All four buckles are micro-adjustable; simply dial in buckle pressures for a fit that's as precise or as relaxed as you like. Servolock upper buckle engages and clos