I would just like to add a comment about your "in the summer" bullet point.
A few years ago I went to the southwest to hike in Utah canyon country. I had some smartwool socks. I wore a clean pair every day in the 100+ heat. They kept my feet nice and cool and dry.
One morning I wondered if they were really making a difference; so, I wore cotton socks and took a pair of the smartwool along. My feet quickly became sweaty in the relatively cool of the morning as I started the hike. I changed to my smartwool socks.
Now, the smartwool socks are a lot more expensive than cotton socks. So, it is probably not practical to wear them every day. But, for long hikes in hot or cold weather, the smartwool performed wonderfully for me. And, I need to add that I didn't have the thin smartwool socks. I had the regular thick ones. I wear them at home for long hikes in the parks.
I will also add that I wear cotton socks daily. They are relatively inexpensive. It is easy to have a spare pair around to change into if your feet get wet or sweaty during the day.