The design that started it all. The OG Logo Tee features the Happy 420 Merch logo in black on an assortment of colored t-shirts. Design size varies from 9x9 and 12x12 inches based on shirt size, available in sizes small to 4XL. Current t-shirt colors include white, orange, green or athletic heather. Or put the OG Logo design on an orange or athletic heather hooded sweatshirt.