Housing pioneering technology, the Mizuno Wmns WaveKnit S1 is a high-performance running sneaker with a modern, minimalist look. This 'Grey' women's option wraps the foot in a monochromatic knit upper with breathable open-weaving at the toe and heel. Signature Runbird logos issue standout style. The redesigned midsole employs U4icX and Cloudwave cushioning, absorbing the impact evenly dispersed by the rubber outsole upon footstrike.