I recently treated myself to an Endura MT500 freezing point jacket, and have been pleasantly surprised by how good it is. I’ve used it for cold windy days in the Dark Peak (sloggy uphills followed by exposed moorland trails). On the climbs, I’m down to just a thin base layer underneath, and just open the vents if I get a bit warm. Occasionally find myself adding a merino midlayer once I’m up out of the valley in the wind.
Probably worth mentioning that I use it on my ebike as well as my ‘analog’ trail bike. It is a really warm jacket – so on the analog bike, I can get pretty steamy, but the back panel breathes well, and the vents are huge, so the jacket deals with excess heat better than most membrane soft shells I’ve owned. On the ebike I generally run a little bit colder, and the jacket is absolutely perfect.
I guess everyone’s susceptibility to cold differs, but for me (on the analog bike) I reckon the jacket might be a bit too warm on days when the ‘feel like’ temperature is above about 5 degrees.
(Previously tried various soft shells & partial wind proof jackets from Gore, Endura and Alpkit and found them to all be really comprised in some way)