Forget boring holiday sweaters this isn’t your grandma’s knitwear. The Shifting Gears Matt Parker Car Engine Ugly Christmas Sweatshirt flips the script with sick car-engine graphics (think pistons, manifolds & carburetors) lit up in festive colors. It’s the perfect plug for anyone who lives life under the hood and hates cookie-cutter Christmas tees. https://creativetdesign.com/product/shifting-gears-matt-parker-car-engine-ugly-christmas-sweatshirt/