Biker's Fabric is a term used to describe the type of fabric commonly used in motorcycle apparel. DENIM is a type of fabric that is often used for biker's clothing due to its durability and comfort. DENIM is a sturdy cotton twill fabric that is usually blue in color, but can also be found in other colors. It is a popular choice for biker's clothing because it is strong enough to protect against abrasions and is comfortable to wear.