Founded by brother Sandy and Emil Corsillo, The Hill-side is based out of Brooklyn, New York. The brothers have a strong focus on fabrics, and their brand started in square neck ties and pocket squares. They have expanded far beyond that, but still focus on finding beautiful and often rare fabrics, both domestically and from around the world. Much of their production takes place in New York, or when the project calls for it, by one of their many friends and partners in Japan.