I Support Public Breastfeeding: Nursing Support Shirt Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 58% Cotton, 42% Polyester Imported Machine wash cold with like colors, dry low heat Support nursing moms and normalize breastfeeding. Fit: Slim (consider ordering a larger size for a looser fit) Let others know you support public breastfeeding! This premium t-shirt is made of lightweight fine jersey fabric