Crocs Classic Sandal v2 K 209421-001 Black Properties: Crocs Classic Sandal V2 K 209421-001 are classic children's sandals in a universal black color. Made of durable and lightweight Croslite™ material, they offer all-day comfort. Two adjustable straps ensure a secure fit to the foot, and the cushioned sole protects against shocks. Perfect for summer – for playing, walking or going to the water. Easy to keep clean and quick-drying.