Wow, these are really thick and super warm socks! These were exactly what I was hoping for to wear around the cabin during my mountain get-away. My mother was able to wear her pair under her sneakers (we split a pack).  My sneakers were too tight to accommodate the thickness of the sock, but my boots were able to fit with the sock. Keep this in mind & wear with shoes larger than your normal size, or just use them as phenomenal "slipper" socks around the house in the cold weather. They're very soft inside & non-binding/not constrictive for those with circulation concerns.