Replaced an ancient polarfleece filled vest that was a fall, winter, spring go-to for me here in New England. Typical use is to/from vehicle to office or store, but I also do a daily walk at lunchtime and dislike having to bring a coat. This vest seemed too light when I opened the box to provide sufficient warmth on 25 - 35 degree days - but turned out to be more than capable. Basic long sleeve dress shirt and this vest and I'm comfortable, even when others are wearing full heavy gear. Just zip up/down a bit more and temp is easily regulated. Nice choice.