Lightweight drytech mesh upper allows feet to breathe. Single touch fastening tab on cross strap. Three layered sole with engineered openings to evacuate moisture. Extremely light, non-marking Neoprene PU sole absorbs shocks. Machine washable at 30 degrees. Quick drying after washing or use in water. "Aeronet 2D" non-metallic membrane between out & inner sole. Eco-friendly, antibacterial bamboo technology insole. Comfortable to wear with or without socks. Innovative design to reduce sweating and unpleasant odours. Lining Material: Textile. Outer Material: Textile. Sole Material: Phylon.