Worm Compost Vermicomposting 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 If you love those little red worms that help your table scraps and yard waste turn into beautiful, fertile compost, this is the t-shirt for you! Vermicomposting, or worm composting, is a great activity for the whole family - it's educational, fun, and good for the Earth! Lightweight, Classic fit, Double-needle sleeve and bottom hem