Cow Days: A handy way to remember the equation for how many cows per acre! Gray shirt with white writing. On the Front: #Cows x #Days/#Acres. On the Back (Stacked words, in white print) : "Mobstocking, Herbivorous, Solar Conversion, Lignified Carbon, Sequestration, Fertilization."

100% Pre-Shrunk Cotton T-Shirt, Gildan Brand.

Runs true to size. Very durable, washes well.