When Umberto De Marco went looking for a pair of sustainable trainers and returned empty-handed, he made a decision: he would create the world’s first luxury sustainable sneaker brand. Little more than 50 years ago his father Enrico invented an eco-friendly synthetic-leather material. Coronet Group, the company that spun out of that invention, is today a global manufacturer that supplies fashion labels such as Louis Vuitton and Armani. Having put Coronet’s expertise to use, De Marco has launched a line of trainers made entirely in Italy from high-quality vegan leather.