Nunn Bush Otto EZ Moc Toe Slip On Leather Shoes Gunmetal 85064-025 The textured leather upper of the Nunn Bush Otto EZ Moc Toe Slip On is enhanced by its contrasting sole and colored welt. Adding comfort to its versatile style, it features the convenience of our EZ in EZ out heel, breathable mesh linings, and our signature Flex Technology. Durable suede leather upper Unlined 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 Flex Technology for added flexibility and wide-range foot movement EZ collapsible heel for easy-on, easy-off slip on convenience