What better way to comfort your dog's rest than with a cooling mat. It feels like a waterbed for your dog and keeps him or her cool and calm during the heat. Made from Non-toxic cooling crystals, just soak it in cold water and let it sun dry. It lasts cool for 3 - 10 days and can be reactivated many times. Made of 65% Polyester and 35% Cotton. Please note: Patterns may vary due to fabric availability. Please let us pick the pattern for you.