RST Alpha 5 CE Mens Motorcycle Textile Jacket - BlackRST Alpha 5 CE Mens Motorcycle Textile Jacket Black RST's entry level three quarter textile jacket and jean. The Alpha has all the basic features that you need with a nod to safety in terms of the reflective panels on the outside of the jacket. Even in extreme conditions, you can stay visible, warm, and dry. All the things you would expect from a three quarter length textile jacket and jean combo.