These are great socks. I decided to fit together my own robin costume for this haloween, and these are my favorite part. I wear a men's size 11, and they fit fine. They go all the way up to my knees, but are somewhat transparent when pulled that high. The only thing I'd have changed are putting one of the "R" logos on the other side so they are always visible from either side. I understand they match the shirt design, but I think it's still a better option.