Salomon Women's Ellipse Aero Hiking Shoe 100% Synthetic Imported Synthetic sole Heel measures approximately 1.5" Injected EVA - Increased shock attenuation, responsive cushioning and durability. Women Specific Design - A design created to fit the curvature of the female foot for a better fit. Asymmetrical Sensifit - Sensifit system works to cradle the foot providing a precise and secure fit. Sensiflex - Insert in the forefoot which accommodates for the natural expansion of the womens foot which naturally occurs through the running cycle. Anti-debris Mesh - Avoid debris to be trapped between your foot and the footbed, and keep your feet comfortable.