In this paper we propose a novel wearable architecture based on the popular and proven I2C protocol. Our goal is to develop a modular approach towards wearable computing in a sense that users simply attach specific modules to their garments depending on their requested functionalities. The I2C bus is embedded in the clothes and magnets are used as connectors to physically attach the modules and connect them at the same time to the bus. This usable principle makes the clothes versatile as they can be entirely personalized in terms of functionality.