Zentek cooling pads are lightweight, water-resistant and help to keep your dog comfortable, whatever the conditions. Our cooling pads are created of four layers of the highest technical smart fabrics. Zentek has figured out how to use airflow to recharge the cooling ability of their products. You can wet the mats, if you are in temperatures over 100F. But it is rarely necessary. The huge advantage, is that Zenteks' products actually regulate the temperature of their surroundings. Zentek mats use the highest quality technical materials that are lightweight and machine washable. Mildew is not a problem as with other pads. Made to fit Vari kennel crates sizes 200, 300, 400 and 700. These are the products that the show dogs use, whether being shipped in cargo, or being crated at show.They are simply the best.As well as made in the USA.