Senpai Will Never Notice You T-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 Fun twist on the Notice Me Senpai shirts. It's all about tough love for your otaku friend. Does your kouhai friend not get it? They will when they read your shirt. Lightweight, Classic fit, Double-needle sleeve and bottom hem