Classic style crew socks appear at Target starting in January 2021. These MAY be in the electronics/video games section OR in the adults socks area. They are by BioWorld. It can depend, so be sure to have a look around the store if you want them. They are crew length, adult sizes only and cost 5 dollars for the pair. This is somewhat typical of an adult size sock.
They're black with geometric scribble/line confetti type background & a blue line around the top cuff and toe area. They have a scattering of fairly large Sonic, Tails and Knuckles faces. The faces are silouhette style, with only the eye as the detail. Oddly though, there's no pupil for anyone but Sonic. The designs are a part of the sock-weave-fabric so they can't wear off. Notice there's a Japanese phrase though, in white letters...but what does it say? You can write in for credit if you can read this.