12 days of Christmas? More like Eleven. This Stranger Things Eleven Days of Christmas Sweatshirt looks like an ugly Christmas sweater, but it is a more comfy pullover sweatshirt. What? You haven’t seen Stranger Things yet? You are like the only person reading this who hasn’t seen this show. The rest of us are shaking our heads at you. WE all know how awesome this shirt is! Some people, right?