On, the Swiss performance footwear brand specializing in running, has introduced its first collaborative sneaker with Roger Federer, the Swiss tennis champion who joined as an investor and a brand ambassador last November.The Roger,” inspired by the tennis sneaker of the ‘70s, features an all-white color scheme, with white stitching and a tiny Swiss flag at the heel. The shoe is equipped with On’s proprietary CloudTec technology, for enhanced sole cushioning. Furthermore, it is made using with vegan leather, to reduce its environmental footprint. The inaugural edition of the shoe, dubbed The Roger Centre Court “0 Series,” is limited to 1,000 pieces, individually numbered on the tongue, so that every pair in the 0-Series pre-release will remain unique.