Experience the power of the Zero G Tour, a four-buckle ski boot for intermediate to advanced backcountry skiers. The Zero G Tour weighs in at 1,500g (for a shoe size 26.5) and features a super-wide range of motion of 55 degrees transforms, which turns a climbing skin climb into a walk in the park. And yet, when you lock down all four buckles for the descent, the flex index of 110 gives the Zero G Tour Scout great performance on the descents.