Pilot E95S
This is a lovely pen. It easily fits in any pocket which is where mine will be found most days. The nib is very smooth and a real pleasure to put on paper. It is lightweight so if you're looking for some heft you might choose another pen. The look is unique to my collection and that's what drew me to it. It reminds me of fountain pens when I was growing up. I'm happy with it in every way.