Nunn Bush Otto Moc Toe Slip On Walking Shoes Leather Black Tumbled 84963-007 The textured leather upper of the Nunn Bush Otto Moc Toe Slip On gives it a visual depth that is further enhanced by its contrasting sole and colored welt. Adding comfort to its versatile style, it also features breathable mesh linings and our signature Flex Technology for unparalleled comfort. Leather sourced from a tannery with a Gold or Silver rating for environmental responsibility by the independent auditing group, the Leather Working Group. Genuine leather and textile 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, and algae-based product, 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