Bio World produces 2 more socks for summer 2020.
This is the factory photo, which shows they are in adults sizes to fit anyone (yay) and the designs are sewn into the fabric so they can't wear off. The socks are gray, with blue heel, cuff, and toe. The first pair has some neoclassic art for Sonic with feet forward and one fist held out. It has black double stripes for the foot area & below the cuff. The other sock has a scattering of all the same classic Sonic face all over the whole sock.
What's odd with the first one is they DO have black thread, so why didn't they use it for his eyes? He'd look better and sharper if they were black. (The second pair doesn't use black thread so it would have cost more to use it for just the eyes so you can see why they wouldn't in this instance) But, how much are these, and where are they sold?