Our jackets, shirts, and pants are going to become smarter in the future. There are already a bunch of companies working on smart clothing items. Adafruit has published a guide that shows you how to make your jacket smarter. The Flora GPS Jacket tracks your coordinates and pulses the lights around the color when you reach your destination.
You are going to need a Flora main board, Flora GPS, and a few other parts to get started. More instructions are available here.