LYME Disease Awareness 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 This shirt shows the world that you support research into LYME Disease! Great as a gift for someone battling LYMES Disease Lightweight, Classic fit, Double-needle sleeve and bottom hem