Perfect for sharp accelerations, the adidas Adizero Boston 13 offers the responsiveness and stability needed for your interval and tempo training. The shoe for when you're picking up the pace! Midsole Lightweight cushioning with increased energy return is provided by the foams Lightstrike and Lightstrike Pro. With this combination of foam materials, the Adizero Boston 13 can be used during tempo training and competitions. Lightstrike provides more stability and ground contact with every step, while Lightstrike Pro ensures high energy return. Upper The lightweight mesh upper wicks moisture away from your foot, keeping you dry and cool. The mesh is also made partly from recycled material. Outsole With every step you take, it is important to have good grip and for this model, a strip of premium Continental Rubber is available on the forefoot. This type of rubber offers superior grip and traction with every type of run. The rest of the outsole consists of a new type of rubber called Lighttraxion, which is lighter in weight, but can offer the same firm grip in racing conditions.