I live in MI and tried the Bradley Winter Breeches last year. The ones I tried weren’t full seat but they do offer them. They were amazing. They cut the wind and were really soft inside. They had a lot of give to the material but still had a very tailored look. I would wear them alone in 32 degree F and if it was below they had enough give where you could put some Under Armour on and it was really warm. LOVE them!