Motorbike shirts and Kevlar motorcycle shirts are specialized types of clothing designed for motorcyclists to provide them with extra protection while riding. Kevlar is a type of synthetic fiber that is known for its high strength and durability, and it is commonly used in motorcycle gear to provide protection against abrasion and impact. Both motorbike shirts and Kevlar motorcycle shirts are popular among motorcyclists because they provide an added layer of protection while still being stylish and comfortable to wear. However, it's important to note that these shirts are not a substitute for proper motorcycle gear, such as helmets, gloves, and boots, which are essential for protecting the rider in the event of a crash.