Yia Yia Grandma T-shirt (Worlds Best) Mothers 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 Cute worlds best Yia Yia apparel clothing for a Greek grandmother. Our cute YiaYia grandma clothes make great birthday or Mothers day gift ideas. Lightweight, Classic fit, Double-needle sleeve and bottom hem