Puffin is a nerdy periodic table Birdwatcher vintage design featuring "Puffin" spelled with periodic chemical elements and a Puffin silhouette on a vintage retro background. A special design for nerdy birder who loves birding, science and chemistry. Get this "Puffin" periodic table design for your loved birder who is a science enthusiast and loves retro designs. Lightweight, Classic fit, Double-needle sleeve and bottom hem