The Nike Zoom Winflo 2 Running Shoe is made with engineered mesh and Flywire cables to provide lightweight breathability and a glove-like fit from start to finish. A Nike Zoom Air unit delivers responsive cushioning, and flex grooves let you move naturally through your stride. Engineered mesh forefoot delivers a breathable, supportive fit. Nike Zoom Air heel unit provides responsive cushioning. Lightweight Flywire cables for an adaptive fit. Cushlon midsole for soft, responsive cushioning. Rubber Waffle outsole for durability and multi-surface traction. Flex grooves for a natural stride.