Middle Child Shirt Reason Why We Have Rules Tshirt Siblings 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 Ideal T-shirt for the middle siblings,middle child, middle brother, middle sister. Also check out our shirts for younger and older siblings. Fun Novelty Gift Tee for Birthdays, House warming,Family get togethers, Christmas, Special Occasions. Lightweight, Classic fit, Double-needle sleeve and bottom hem