Not just a product of design and fashion but also of technology: a shoe that involves the customer in its "construction". The concept is as simple as it is genius. The SOLE is the fixed element of the shoe while the UPPER, a one-metre-long elastic strip, is threaded through slits in the sole itself, allowing the shoe to be constructed without the use of machinery, glue or stitches. Customers can engage their imagination to change the colour and style of the shoes to create their own unique look. Patented in 1999, it can be considered a pioneer in Eco-friendly footwear, as the absence of the conventional industrial construction process significantly reduces Co2 emissions (-50%).