The Rossignol AllTrack 90 makes a great ski boot for the intermediate to advanced skier who has a medium wide forefoot and medium to narrow shaft of the leg. Rossi's Sensor Grid Technology uses a grid structure that wraps the forefoot to enhance responsiveness and keep the weight of the boot to a minimum. The Posi-Block Ski/Hike Mechanism provides you with easy walking to the chairlift if you lift up the lever located on the rear spine of the boot. A 102mm last best fits skier with a medium width foot to have comfort, responsiveness and control.