Our Lulu sandals feature a sleek design with a timeless, slightly padded triangular upper made of leather. They incorporate our legendary ergonomic Microwobbleboardâ„¢ midsole, making them the perfect choice for a versatile seasonal shoe. Upper Material: Leather. Lining: Fabric. Closure: No Closure. Sole: Non-slip Rubber. Sole Technology: Standard Microwobbleboard. Slip-resistant rubber. Padded microfibre.