This essay considers how travel and mobility inflect our politics of alterity through changing skin color. It asks how globality is rendered through the prism of epidermal vulnerability, the sunburn. When is this affliction of skin desirable and what cosmopolitan relations does it engender? It asks how skin transforms, and transforms us, when it travels. It considers what it means for brown skin to be marked by vacation travel. How is it coded differently than tanned white skin? What experiences are ascribed or denied to brown skin that has been marked by travel under the sun?