Kids I am 4 T-shirt with Friendly Monster for Birthday 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 Happy Birthday to your favorite 4 year old! Adorable silly monster adorns this fun t-shirt. Makes a great gift for a little boy or girl who loves monsters that aren't scary. Lightweight, Classic fit, Double-needle sleeve and bottom hem