Driving through the gorge in light rain, driving down in heavy rain, being caught by the rain. I got soaked everywhere I wasn't wearing this jacket. I was wearing "waterproof" cycling shorts. The jacket is light enough for those early morning summer walks and light enough to be rolled up into a small bundle and stowed away when it's warm! I'm really looking forward to cool morning mountain rides with it! Bought the women's version for my wife!