"It's your choice." He puts it back once he's done examining it. Mostly, he just enjoys the thought of seeing Shinjirou struggle to fit something so big into himself. Whether or not he'll be too loose afterwards hadn't entered Jade's thoughts, though now that it's on his mind, he can see the potential for mischief. "There's no need to worry about what I think."

Which, as always, isn't entirely true. But Shinjirou has more freedom here than in choosing clothes, at least.