Certified Nursing Assistant Heartbeat CNA T-Shirt 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 Certified Nursing Assistant Heartbeat CNA T-Shirt. Great CNA T-Shirt / Certified Nursing Assistant T-Shirt Makes A Great Gift For A CNA! Lightweight, Classic fit, Double-needle sleeve and bottom hem