RST Alpha 5 CE Waterproof Jacket - BlackRST Alpha 5 CE Waterproof Jacket RSTs entry level 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 length textile jacket and jean combo. Safety : CE Certification Rating: AA Back Armour: Pocket Only Elbow Armour: Level 1 Elbow Shoulder