Duo Card Wallet in Kangaroo Leather by IE Francis. IE Francis Minimalist Goods is an independent, small scale design studio producing a range of carefully designed leather products from the finest Australian leathers. It is the creative studio of Isaac Francis – a qualified boot-maker and industrial designer. His approach to design sits at the crossroads of these two contrasting professions – the slow and honest craft of bookmaking, and the modern, considered approach of industrial design. Isaac has been designing and manufacturing every single product from his small Melbourne studio for over seven years.