"MOST WANTED SHIRT," the garment is now labeled on their website.
"It's not about that he's an international criminal," Shawn Esteghbal told the Guardian. "But we're excited because he could buy anything, he could buy Versace, any other brand, but to choose our brand, our designs!"
The brothers said it wasn't clear what attracted Guzman to their $128 shirt.
"I don't know. People just always look for something unique, and they're probably thinking this is unique because that guy wears it. He could wear a $10,000 shirt or a $3,000 shirt, but he wears Barabas," Sam Esteghbal told CNN.
Shawn Esteghbal said "sales are skyrocketing" since the pictures went public.
"We cannot keep them in stock, and we have a lot of demand from all over," he said.