Picked up a sitka mountain vest this year, mainly to use as a wind stopper layer over top of a core lightweight when early season bow hunting. I can wear that in the early mornings when it’s cooler and not have the core lightweight breathe through too much and get me cold, and then tuck the vest away if needed when it warms up. Also for PM hunts after dark or even if it is a cooler windy day.
I typically don’t wear vests if temps are below 60, just go straight to the jacket for that.