Cooling Pad absorbs excess body heat to cool you down naturally—no refrigeration or freezing required. And it stays flexible, comfortable and dry the whole time you're using it. Enjoy its soothing relief in your pillowcase or on a chair or couch. Perfect for a better night's sleep and pain relief. Blue nylon covering with cooling gel. 21" l x 14 1/2" w x 1/4" d.