Mountain Horse Rimfrost boots with SmartWool hiking socks.
Irideon Windpro FS breeches with Irideon long johns underneath. They are comfortable without seams and slippery so it’s easy to get breeches over them.
If it’s in the 30s, an Outback jacket with a turtleneck, and a fleece vest under if it dips down into the mid-20s. Below that I got a MH jacket (actually more like a coat) last year that is fantastic. Even in the teens it is plenty warm enough for just a t-neck underneath, and long enough that it covers most of my thighs.
An Irideon Chinchillah headband is light enough to fit under my helmet but keeps the ears warm.
The biggest problem I have is with my hands. SSG lined leather gloves, but they don’t keep all of my fingers warm enough. Have to work on that for next winter.