PHI T-shirt – Number Phi 1.618 – 4915 digits Fibonacci shirt-ANZ

Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 65% Cotton, 35% Polyester, Imported, Machine wash cold with like colors, dry low heat, Phi or fi, the Golden Ratio number. An irrational number with many unusual mathematical properties. A.k.a. The Divine Proportion or the God Number. Phi is found in Math, Nature, Art, Design, Beauty and the Face, Lightweight, Classic fit, Double-needle sleeve and bottom hem