I know I'm not alone in this situation and I'm sure this applies to other country areas also. I go to work early and it is often 40-45°F. But leaving work it can be 90°F. On a 45 min ride one way this gets very cold on the freeway parts and very hot stuck in traffic parts. I'm not interested in carrying any large boxes on my bike during commuting containing all your different temperature gear; small backpack for lunch, laptop and a few papers will suffice. Besides driving a cage, there must be an easy, light weight solution to stay comfortable. Similarly, I have yet to understand why motorcycle manufactures don't use some sort of adjustable flap or duct to allow control of air direction to block or allow engine heat to ones knees/legs/torso. Same for hand guards, some quick way to allow air or block the air. At least there are windshields that quickly go up or down nowadays.