fabric-and-synthetic Rubber sole Lightweight — Each pair of shoes weighs about 0.8lb, provides feelings of walking barefoot. Breathable — Fabrics is made with fly-weaving technology, the mesh upper provides excellent quick-drying and ventilation. Non-slip & shock absorption — The resilient cushioned midsole and slip resistant outsole protects you from bumping into hard objects as you run. It will further absorb more impacts from each step you take. Upgraded insole — Honeycomb insole design can reduce foot odor, increase plantar stability and provide shock absorption effect. Customer Service — Best customers service guaranteed! If you are not satisfied with your purchase, please feel free to contact us, we will handle it within 24 hours.