The Rossignol Elite EXP 3 W Ski Boots size EU: 43 are built for advanced to expert women. Specifically, the women’s liners are lower than the unisex to accommodate for the anatomical differences in the lower leg. A women’s calf is typically lower than a man’s. Therefore, the liner is cut out in the back for a more comfortable fit. The woman’s padding around the top of the liner users softer foam to accommodate a woman’s lower calf. The Rossignol Elite EXP 3 W Ski Boots also feature an Active Cockpit design. A Bi-injected interactive structure is built into the boot to maximize performance and fit. Harder more responsive plastic is injected closest to the foot for ultimate performance while softer plastic remains on the outside for a better fit and smooth flex.