The Nike Sock Dart Unisex Shoe knocks your socks off with a soft upper that surrounds your foot in comfort & just enough structure to add stability. Secure, Sock-Like Fit Flexible, breathable mesh helps keep your feet cool & comfortable, while the moulded midfoot strap with adjustable closure provides a personalised fit. Soft Cushioning Full-length Phylon foam underneath your foot offers lasting, cushioned comfort.