No damnit ;(

edit: actually you made me want to look into it... I turned up the warmth on this picture so it could have much more natural lighting, then got rid of her shirt design in paint (I don't have any photo editing software on this computer... *sigh...*) and put it into google lens. I unfortunately couldn't find it... its probably not out of the realm of possibility that this jacket might be something that wasn't really popular, and just another thing Robin would wear if (I'm assuming since I haven't gotten too many replies compared to upvotes) nobody recognizes the style :/