Thank you for viewing. Handling Instructions: Machine washable Sole Material: Rubber Outer Material: 3-layer mesh Inner Material: Soft and breathable fabric About this product: Engineered Knit Upper - Designed to provide unparalleled breathability. Wide Toe Box - Increases flexibility in the forefoot, allowing for smoother foot movement. Air Cushion Heel - Creates a secure and snug fit with every step. Innovative Cushioned Sole - Provides exceptional comfort and highly responsive cushioning. Concave-convex rubber outsole - Improves traction, stability, and durability. New, but without a box.