/fa/ - Fashion

I wanna get into boots, especially because it gets so cold where I live.

1) Is there like a general rule of thumb when sizing for boots? Do most, if not all, boots fit large or does it vary from designer to designer like with sneakers?
2) Has any of you had any experience with Royal Republiq? Are they any good? Most of their boots are lined, which is nice to have in cold weather. Pic related.
3) What is the preferred sole type for harsh climates in fall/winter (cold, snow, rain, sleet, you name it)? I read Vibram soles lose their touch when in cold weather.

Help a brother out!