Other than a helmet (which many don't even want to wear), there is little protection for motorcyclists in the event of an accident. A company by the name of Impact Jackets
has been selling motorcycle jackets with airbags for a few years, but at $500, many find the price too high. A Baltimore man can likely provide a terrific rebuttal to the high cost argument since the jacket saved him from plenty of pain after he was thrown 100 feet from his bike. Amazingly, the airbag jacket-wearing rider walked away from the life-threatening crash with sore ribs and a broken thumb, making it the best 500 bones he's likely ever spent. Paramedics that reached the scene of the accident were surprised more damage wasn't done. Impact Jackets has a pretty good video
that describes how the airbag jacket works.
[Source: Kicking Tires]