Here is the product description for the catalog:
The Classic Lightning Bolt clogs from Crocs are casual and summer flat sandals perfect for the beach, holidays or your daily life. Designed to offer exceptional comfort and breathability, these flat sandals are made of synthetic, with a synthetic lining and insole for optimal lightness and flexibility. Their sole is also synthetic, which guarantees durability and resistance to wear. The synthetic shoe is also a key element of their design. The Classic Lightning Bolt clogs are available in black, a neutral and elegant color that suits all styles. The details of these flat sandals are also noteworthy, with colorful and abstract patterns printed on the surface, including zigzags in orange, blue, white and green. A circular logo is visible near the back of the shoe, where the belt attaches to the main body of the shoe.