Our Aloe Vera mattress protectors are produced with untreated, GMO-free cotton. The Aloe Fiber is completely biodegradable and recyclable, and its physical and chemical qualities are identical to cotton, including great breathability and moisture control. The fabric repels moisture and cold from the outside, while its huge number of pores allow sweat to evaporate quickly. The cloth cools on warm evenings and warms when you’re cold. Cotton is also a fair trade product, meaning that the farmers who grow it are paid a fair price above market value for the honest results of their labor and their commitment to environmentally sustainable growing techniques. Protect your investment.