Mens Dad In Binary Code T-Shirt - Computer Father's Day Gift 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 Is your dad a computer science major or computer programmer? Does he understand binary, hex, ascii and more? If so then pick up this perfect "Dad In Binary" tee-shirt for him on father's day, his birthday or any other special occasion. Lightweight, Classic fit, Double-needle sleeve and bottom hem