E-textiles
E-textiles also known as electronic textiles or smart textiles are digital fabrics that enable computing electronics to be embedded in them. This is a wearable technology, known as smart clothing or intelligent clothing. The clothes have built in technological elements like cables, micro controllers, sensors and actuators, intrinsic to the fabric structure with reduced chance to be seen. E-textiles include many features like color changing, animated image etc that will appear on your clothes. Though it is loaded with technological elements it is yet comfortable than the other clothes.
Stealth technology
Stealth technology or low observable technology is a technology that makes aircraft,ships,submarines and missiles less visible to radar,infrared,sonar and other detection method, the aircrafts are made by Non-metallic airframes because dielectric composites are more transparent to radar, whereas electrically conductive materials such as metals and carbon fibers reflect electromagnetic energy incident on the material's surface. Radar-absorbent material (RAM), often as paints, is used especially on the edges of metal surfaces. While the material and thickness of RAM coatings can vary, the way they work is the same: absorb radiated energy from a ground or air based radar station into the coating and converts it to heat rather than reflect it back. Most stealth aircraft use matte paint and dark colors, and operate only at night.Collected from http://www.wikipedia.org/