What do Google’s Project Glass, Zephyr Technology and the Hug Shirt have in common? All are examples of wearables: computing devices that are always on, always accessible and easily worn on the body. With the growth of sensors and microelectronics, the potential uses of wearable-computing technologies now reach to health and fitness, gaming, fashion, disabilities and augmented reality. Most importantly, the widespread adoption of wearables will drive the form function and market for mobiles in vital ways. This report provides a historical background, an overview of the technologies in the wearables market and possible future trends as the market expands.