Back Off I Have a Sister I'm not afraid to use her - 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 T-Shirt for loving family members. Get your daughters this funny tee. Back Off I have a sister and I'm not afraid to use her, sister forever, sister power Lightweight, Classic fit, Double-needle sleeve and bottom hem