FitFlop LULU GLITTER Womens Back-Strap Sandals in Black Glitter. These sandals feature a polyurethane upper, textile lining, and rubber sole. They have a buckle closure for a secure fit and are designed with slip resistance, comfort, and breathability in mind. The round toe shape and regular shoe width ensure a comfortable fit, while the flat heel (under 2.5cm) provides all-day comfort. The microwobbleboard midsoles offer excellent cushioning and pressure diffusion.