HEY! HAY? HEY! TShirt 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 Based on a family joke, HEY! is what we yell when we see any bales of Hay... be it a truck, farm, wherever HAY is found ;) My wife started it and now we all do it.. so yell 'HEY!' when you see Hay! Lightweight, Classic fit, Double-needle sleeve and bottom hem