Havaianas HAV LUNA Womens Sandals Crocus Rose. These are Brazil's original and authentic flip-flops designed for a city look overflowing with femininity and comfort. The straps are lengthened into a... The upper material is synthetic, with unlined synthetic lining and a rubber sole. They feature a slip-on closure for easy wear. Designed to be lightweight, water-resistant, non-slip, and comfortable, with a round toe shape and regular shoe width. The heel height is flat (under 2.5cm).