Pyro Shield offers a complete line of high-temperature multi-layer "3D" silica fabrics that differ from other silica materials both in appearance and performance. "3D" silica is vastly superior in strength and abrasion resistance over single layer materials.\r\n\r\nThree-dimensional fabrics have multiple layers of yarn woven together into a single fabric. This unique process yields "3D" fabrics as thick as two inches.