Denim is a durable cotton fabric made using a twill weave and is dyed with indigo, popularized in the late 17th century in France. The modern denim jeans we know today were invented in 1873 by Jacob W. Davis and Levi Strauss, with their patent creating a widely popular garment. Levi Strauss & Co., founded in 1853, remains a leading denim brand with a significant share of the global market.