The altura transformer windproof jacket is perfect if you39re ready to go out for a ride but can39t decide if the sun is going to come out or it is going to stay over cast this jacket has been designed to be adequate for both without taking up storage space in your backpack the clue is in the name this jacket can transform from a long sleeve into a short sleeve in seconds you can easily zip off the arms to regulate your body temperature when the sun comes out the three