Model [ NK10872866]Nike Sock Dart Shoes Medium Grey/White/BlackSlip On. Strap In.The Nike Sock Dart Unisex Shoe knocks your socks off with a soft upper that surrounds your foot in comfort and just enough structure to add stability. Secure, Sock-Like FitFlexible, breathable mesh helps keep your feet cool and comfortable, while the molded midfoot strap with adjustable closure provides a personalized fit. Soft CushioningFull-length Phylon foam underneath your foot offers lasting, cushioned comfort. More DetailsRubber outsole for durability. Flex grooves let your feet move naturally