Phi is a Greek letter used in mathematics to represent the number 1.6180339887 – the key number in the Golden Ratio. Many living organisms grow in proportion to the golden ratio, like the bones in a human finger, and the branching of veins and nerves in animals and humans. Explore the apparent impossibilities of math and wildlife in the Living on the Fringe tee. It features a frog glyph with a phi symbol on its back above "Fringe" and "Imagine The Impossibilities."

100% Pre-shrunk cottonLightweight ribbed T-shirtScreen print graphicsRib-knit collarImportedOfficially licensed