Well, not all (Gore) Windstopper is the same. My softshell Windstopper is very warm, and despite pit zips I can’t wear it above mid 30s without over heating. I think there are lighter options. I used to have a Windstopper shell that I somehow thought was a rain jacket. That was an uncomfortable and cold mistake; Windstopper is not waterproof. I am sure everyone knows that, but it might bear mention.
Honestly, I don’t feel that Windstopper is far superior to other wind-proof fabrics, but it isn’t bad. My Endura Convert softshell seems just as good and is the jacket I prefer to wear (since it fits slimly while having long enough arms) until temps are single digits.
