Uses calf leather from the French tannery, Du Puy. Du Puy Bubble Calf Founded in 1948, Tanneries Du Puy (France). They use only the highest quality European raw hides and, with their unique tanning and dyeing techniques, they are a dominant force, trusted by many maison brands. Du Puy is known for its excellent color, a unique texture that is both soft and firm, and a distinctive grain created by special processing. It is attractive for its beautiful, long-lasting colors and soft touch.