Winter: Rapha merino jerseys. I have an RCC training jersey, Italy country jersey, and Brevet that are all fantastic. Warm but still breathable, fit and material are fantastic. Add my RCC wind jacket and I’m good down to the mid 20’s F. Side note: the Brevet long sleeve wind jersey is nice too, but runs very noticeably bigger than any other Rapha LS jersey I’ve tried so I don’t wear it as much
Summer: Either sleeveless (mostly knockoffs from DHGate), or if sleeved then Rapha Pro Team/ Lightweight