Hello~
Socks with footprints pictures?
The most famous footprints that I know are the ones that our Baidu knows. It has traveled all over the world. This is famous enough.
As for whether there is this trademark, this needs to be checked, but looking at Baidu’s protection of intellectual property rights, the owner of this trademark should belong to Baidu (I think so), but there are some good ones in the market. It is very common in China today for profit-seeking people to do some counterfeiting, what do you think?
You'd better take a photo and take a look, that's the easiest way to solve it.