can you wear thick winter socks with these?
Im a size 44 casual shoe and was wondering if i could fit a boot style sock under these as well as wearing a normal sock without having to get a size up
You might, but it would be a tight squeese and your toes need wriggle room. You would be better of with 2 thin pairs of socks and overshoes or one medium thick sock.
I have worn Decathlon heat summat or other ski socks - with silk lining at the toes and still needed a 'regular' pair of socks underneath.