I have an older Pearl Izumi vest, in screaming yellow/green, that I wear very often, with smartwool armwarmers. My version of the vest has a mesh back and no pockets, but I wear jerseys underneath, so I can lift the back up to get at my jersey pocket. It looks like their current lineup doesn't have the mesh back, which I highly value. This vest and armwarmer combination is my favorite cold weather combo (50s to 30s (when warmed up), good breathability and adjustability, and it can be layered on top of very easily. The vest is just awesome, it is over 10 years old, and I will be very sad when I have to replace it. The armwarmers are great, but they are not wind-blocking. I still very much like them, but have considered something with a bit more heft (like PI AmFib, which I have in legwarmers) occasionally.
For my primary outer layer, I have a PI Attack jacket from 2008, also in screaming yellow/green. It serves as my colder-weather (from 40s to 20s) outer-layer, and is not as breathable or adjustable as I would like. It has slash front pockets (that can be opened to vent), chest vents, and a rear pocket (designed to hold the hood, which I have never used). When it needs replacing, I will get something with better ventilation and/or a light softshell. I do, however, like the partial (sleeve) mesh lining, since I often wear it without sleeves underneath. Ostensibly, it is a rain jacket, but in most temps when it is warm enough to rain it's too warm to wear the jacket. Only in the 40s, or _maybe_ heavy rain in the 50s, would I consider wearing it as a rain jacket.