T-Rex Hates Push Ups T-Shirt | T Rex Pushups 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 Rex Hates Push Ups High Quality Shirt 100% T Rex Approved Shirt Lightweight, Classic fit, Double-needle sleeve and bottom hem