The founder of the Du/er brand once worked for Levi Strauss, the legendary name in denim. After working with traditional jeans for some time, he decided he wanted to combine the functionality of modern materials with a relaxed look – and that’s how Duer was born.The founder of the Du/er brand once worked for Levi Strauss, the legendary name in denim. After working with traditional jeans for some time, he decided he wanted to combine the functionality of modern materials with a relaxed look – and that’s how Duer was born.