Gator Fabric GF20 Polyspun has a hydrophilic treatment that allows more air and water to pass through and reach the plant. Gator Fabric GF20 Polyspun is an excellent geotextile that protects against the growth of weeds. It is specially formulated to resist deterioration due to exposure to ultraviolet light and is inert to commonly encountered soil chemicals. Gator Fabric GF20 Polyspun will not rot or mildew and is non-biodegradable.