One of the most common types of workwear fabric is denim. Denim is a sturdy cotton fabric that is characterized by its twill weave and indigo dye. It is a popular choice for workwear because of its durability and versatility. Denim can be used to make a wide range of garments, including jeans, jackets, and work shirts. The fabric is often treated with special finishes to increase its durability, such as reinforced stitching, abrasion-resistant coatings, and water resistance.