We’ve all been there, bought a shirt that looks nice on the rack, only to find it wrinkles easily no matter how much you starch it. For some autistics with OCD, flaws like these can be a distracting annoyance. Here’s a tip: shirts made of ribbed fabric tend to wrinkle less than plain weaves. Ribbed cloth has narrow cords or ridges that you can feel, running vertically or diagonally. Examples of ribbed fabrics include Twill and Poplin. Make sure you can feel the ridges easily. Prominent ribs on the cloth add structural integrity, which equals wrinkle-resistance.