This was a learning experience in more than one way. Was in the French Alps for 2 weeks. One thing I did not own or packed was a windbreaker/waterproof light jacket. Have never needed it before until I was climbing there at 6500 Feet elevation and it was cool, started to pour rain, and got colder all of the sudden. When I got to the top, there was one of the most overpriced bike shops I have ever been to and had these "on sale" for $45 Euro!! The thing can be found in the US for $40!!!!! I must say though, it was the most valuable piece of gear I owned during the entire trip. Certainly worth every penny of it though. Packs very easily in the small pouch that it came with, which is actually twice as big as it is needed! Long enough in the back too to cover from water from rear wheel spray. The only downside I found with it was that although the velcro on the front is very easy to put on and works very well, it will bind a ton with your shorts if you open the jacket completely while still riding. It is definitely something that requires you to stop to put on and off. Very light and thin fabric, but works as advertised. No vents though.