VermiCulture Compost Worm Farming Gardening Got Worms 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 Go Green Got Worms? Zero Waste WormFarming Vermicompost movement supportive Tee Perfect to spread awareness of organic gardening, urban Eco gardens sustainable farms Lightweight, Classic fit, Double-needle sleeve and bottom hem