Running on difficult terrain requires exceptional footwear. Women's running shoes SCARPA Spin Infinity are a combination of the latest technologies and advanced design, which respond to the needs of the most demanding long-distance female runners. The central element of Spin Infinity is the midsole made of EVA foam with double density, designed to guarantee stability and control during the run. The Adaptive Cushioning System , responsible for shock absorption in the heel and forefoot areas, works harmoniously with the outer sole Vibram® MegaGrip , which offers unparalleled grip regardless of the surface. Stability , even after running many kilometers, is unmatched thanks to innovative technologies such as the Foot Stabilizer Control system. This is a response for Ultra Trail runners, who seek shoes that will accompany them in all conditions. The shock-absorbing 3D mesh used to make the collar and tongue provides maximum protection in critical areas of the foot. Studies of foot shapes a