It Really Works
First use was on a day that had everything weather wise with temps in the mid 40's, occasional torrential downpors, hail, wind, sun, more rain, more sun, etc for over 3 hours. It performed remarkably well. I had a mid-weight long sleeve Smartwool base layer under it and used the Nanoflex arm and knee warmers with rain booties. I was comfortable the whole ride. It is NOT waterproof so don't expect water to stay out. What it does however is let you remain warm and "dry feeling" despite whats going on outside. I saw several groups and all had rain jackets, some flapping in the wind or unzipped with sleeves pushed up when the sun came out. I did nothing but pedal and smile with no adjustemts needed. I have the black but I'm ordering the white after I post this. I love this garment!