Men's Nunn Bush Otto Knit Plain Toe Oxford Walking Shoes Navy Multi 84964-492 The Nunn Bush Otto Knit Plain Toe Oxford features a stylish upper and athletic inspired sole. The modern style is complemented by the comfort of our Flex Technology and lightweight outsole. A versatile and casual shoe, the Otto pairs well with any of your favorite outfits. Engineered knit and man-made upper Defender repellant powered by Scotchgard for enhanced water-resistance and stain protection Breathable, fully padded mesh linings for exceptional moisture management and 360-degree padding Molded/removable EVA with Memory Foam footbed that absorbs the pressure of each step and provides all-day comfort Footbed created with 20% BLOOM Algae, which will return 32 liters of clean water to habitats and clean 20 cubic meters of air Lightweight EVA plus the durability of rubber combine for a robust and comfort sole Flex Technology for added flexibility and wide-range foot movement