I never had thick socks before but do like the feeling of these. They consist of a more slinky inner sock and a nice cushy one outside. You need to pay attention to pulling them on without creases but then they are wonderful. If you are a runner that likes tighter fitting shoes, they might not work for you. I have some shoes where my feet get too squashed but in slightly larger shoes they are my go too socks. Will order some more to be less dependent of one pair of runderwear socks in my repertoire