Just searched same on google and first non-plain shirt was in the second hundred. Duckduckgo was similar. Considering that they classify images according to surrounding text, it seems like pretty good result.
I would go in a store and search there. Not everything has to be solved by tech and AI. This is a prime example of a problem that requires insane amount of work and yet provide absolutely no value to the world.
People still think we will have self driving cars "in two years" yet here we are talking about dumb shirts. AI winter is coming
How am I supposed to explicitly search for a shirt without stripes, then?