Molliter Yda Shoe - Blue with blue sole Ergonomic Design and Premium Upper: seamless leather and technical fabric for comfort and durability. Spring System®: propulsion and well-being, improving every step with a natural push. ROCKER® sole: optimizes the rolling of the foot, supporting a correct and natural posture. Shock Absorbing Technology: midsole with biogelly system that absorbs impacts, protecting the foot. Non-slip bottom with Extra Grip: maximum grip on any surface, ideal for an active lifestyle.