Introverts Unite T-Shirt - Introvert Shirt - Introvert Shirt Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat Unique, great looking Introverts Unite TShirt. These funny Introverts Unite T Shirts features a nice design with the same quote. Available for Men, Women & Kids. Order your Introvert T Shirt today. A perfect Introvert TShirt. Lightweight, Classic fit, Double-needle sleeve and bottom hem