Foam is a versatile material composed of a network of polymer chains that create a series of bubbles or cells. These cells can vary in size, shape, and distribution, providing a wide range of mechanical properties. The edges of foam materials, often overlooked, are crucial as they determine how the foam behaves under stress, how it can be cut or shaped, and how it interacts with other materials. There are several types of foam edges, including straight, beveled, and contoured, each serving different purposes based on the application's requirements.