Metamaterials, engineered to exhibit properties not found in nature, are revolutionizing outdoor seating with groundbreaking applications. One innovative approach is using auxetic metamaterials, which expand when stretched, creating self-adjusting cushions that adapt to body shapes for superior comfort. Another breakthrough involves embedding phase-change metamaterials that regulate temperature, keeping seats cool in summer and warm in winter. For urban environments, researchers are developing sound-absorbing metamaterial panels that reduce noise pollution while maintaining sleek aesthetics. Some designers are experimenting with light-manipulating metamaterials to create seating that provides shade without obstructing views. The most futuristic concepts include pressure-responsive metamaterials that change shape to support different sitting postures automatically. These advancements promise outdoor furniture that's not just durable but actively enhances user experience through intelligent material science.