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.The footbed is created with 20% BLOOM Algae, which will return 32 liters of clean water to habitats and clean 20 cubic meters of air. Round moc toe Water and stain resistant Slip-on Memory foam insole Moisture management lining Leather upper/EVA sole Imported