Only the Best Moms get promoted to Nana 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 Best Mom to Nana t-shirts for grandma, nana, mimi, granny, nonna, grammy Popular custom shirts. Great gifts for Mothers Day, Birthdays or any special occasion Lightweight, Classic fit, Double-needle sleeve and bottom hem