The IonX cooling blanket should be used in the minutes after a workout or race to prevent the horse from cooling too quickly. With the added properties of ionization, the heat emanating from the horse will start the ionization process, increasing the oxygen in the blood stream while inhibiting the production of lactic acid. The IonX Cooler is a strong, durable full body cooler made of 16 oz Yukon Fleece, providing maximum warmth and breathability with excellent wicking properties.