This time of year, I need a shirt that provides a little warmth when I'm moving through the dark damp forests but isn't going to drench me with sweat in warmer areas. I have a North Face 1/2 zip soft shell-ish type shirt that I use right now, but it's not very breathable.

If you found a good one, please share. Obviously something with a 1/2 zip is great for warmth/ventilation adjustment.

Thanks in advance!