A real-time motion capture system (80) and garment (2) includes a wearable activity monitor that may be a pair of denim jeans. The wearable activity monitor includes multiple sensors (30) such as accelerometers, gyrometers, magnetometers disposed within the seams (4) of the garment (2). A microprocessor (40) and wireless transmitter (58) communicate the motion data to an external device (64). The microprocessor (40) and wireless transmitter (58) may be included within one of the seams (4). An elastically stretchable ribbon (32) or a flexible ribbon (32) such as a kapton ribbon or a ribbon formed of textile, electrically couples the sensors (30) and microprocessor (40) and is also disposed inside the seams (4) and the components within the seam are coated with a waterproof coating (34). The external device (64) can store the data or display and analyze the data real-time, and may communicate the data to a further electronic device (68).
