The RSJ289 Crew Mesh Jacket is Taichi's lightest weight, highest airflow summer jacket. It is lighter than some saftey-minded people want considering the 100% mesh construction and lightweight armor. But for others who want something fairly minimal for around town or when it's really too hot for anything else, this is the answer. And you can always order the CE-approved upgrade armor if you like this clean style and lightweight outer shell, but with beefed up protection. Riders of all types seem to like this jacket, even cruiser, touring, and scooter folks. It's simple. But at that price, and when the mercury is pushing triple digits, it make a fine choice for many riders.