Flannels are my go-to for fall which you can see by my many posts on flannels. I happen to find this one at Costco from Orvis for $13, I am not seeing it online but I am linking to some similar ones here.
White jeans are from NYDJ and my boots are Clarks. I got these boots 2 years ago and they are still so comfortable and go with literally everything. I am hat girl and this breathable packable hat goes with my just about everywhere.