Looking for grippy , flexible, light, breathable and quick drying footwear? We have developed the Responsiv Dynamic just for this. The RL Regular Last of fers a performance comfort fit, coupled with an upper mesh that is ultra breathable and quick drying. The Dynamic Sensor sole with aggressive 6mm tread makes this model ultra versatile and powerful in all types of terrain. It is also equipped with a dual density midsole and the Sensor3 footbed. Different densities of cushioning help absorb the impacts between the foot and the ground, helping improve your dynamic stride.