The K&H Cool Lounger bed is made with 100-percent polyester outdoor fabric which is UV rated, water-resistant and tufted for comfort, The K&H Pet Bed Cooling gel pack fits inside the pocket of the Cool Lounger, keeping pets cool for hours at a time, The removable gel pack goes into the freezer and can be used over and over, Outdoor Fabric bed with Cooling Insert, Insert gel pack into bed and it cools for up to 6 to 8-hour, Fabric is UV rated and water resistant, Extra Cooling Inserts also sold separately, K&H Cool Lounger details:, Large: 32 x 46 x 5"", Small: 25 x 32 x 4"", The durable vinyl/nylon exterior is easy to keep clean, SKU: AGMD424