Essential winter clothing?

I would agree and disagree with the above. It might be a two jacket range now but certainly
wasn't with the original Gabba/ Perfetto with stretchy Windstopper.
It was around 0° the last 2 days and I had no issue with a Sportful Fiandre (the old one that is like a Gabba) and 2 base layers and I have no problem with the same jacket at 12°.

I have the original Gabba, the old Perfetto and the Sportful Fiandre that all use the stretchy X-lite Windstopper and they all feel pretty much the same they work from 0-15. you put them on and at any effort you feel just right, I once got so soaked that there was water running down the sleeves into my gloves filling them like balloons but the jacket still felt the same and I was warm.

Then I got the Perfetto with Infinium and recently a Sportful Fiandre also with Infinium and they are both crap but completely different from each other.
The Perfetto is kind of chilly all the time and I feel I have to keep the effort up to keep warm, it has very little stretch and feels like a straight jacket in any other than riding position.
The Fiandre is absolute garbage, worst cycling jacket I ever had, on my first ride I had to take it off after 10km and switch to the old one because I was soaked in sweat and felt like suffocating, after 5min in the old model it all just went away and I stopped thinking about what I was wearing. Second ride was around 7° but still the same, had to go super low effort below 20km/h to get home without a heat stroke.
I thought they knew what they were doing with the Gabba and would just keep the formula and maybe change the colours around, don't know why we are 10 years back with everybody just flailing around with a million jacket models that all don't work.
Did the X-lite Windstopper have some nasty chemicals like Shake Dry?