My first and equally awesome

Have started to ride a bike to work; 15 km easy. Down to the Neckar and then back up, later flat. Previously I had the jacket, at temperatures between +7 and +15 C C, windy. I have used impression that one always has the same body temperature in the jacket. Cloudy, with different "Underneath". No moisture storage in the jacket. I notice the moisture transport in mind that is damp with sweat on target as the backpack shoulder straps .... My conclusion: If you wear the jacket regularly, the investment is worthwhile. Whether there are cheaper alternatives, I do not know.