These socks are perfect for keeping my feet duper warm, infact, sometimes too warm. They are not bulky to wear even with smart shoes and trainers. I highly recommend these. Only wish they would do them in other colours too.
Raynauds is getting worse so fed up with cold feet I bought a copper and silver pair. Copper is designed to be much more tighter fitting than the silver, both give warmth particularly when moving around. Prefer the copper. Delivery was quicker than expected.
These are definitely compression socks. I am a 7 and bought the larger size, thankfully. they are quite short and I find the top digs in. I am not sure they help to keep my feet warm, 12% silver socks are much, much better for warmth.