Get one for you, one for your evil twin, and one for your evil twin's evil twin.
If your evil twin is more evil than you and your evil twin's evil twin is more evil than him, then he must be like, really evil. But it's no matter; you'll all look great in your matching Unsimply Stitched shirts. Also, you'll all look identical. So don't be mad if you get mistaken for your evil twin's evil twin. It's not a reflection on you- it's just the shirt.