An innovative cooling technology. Soothing cooling comfort on your favorite pillow. Adds coolness to any pillow. No more night sweats! Simply fill pillow with water for cool relief. Create your perfect sleeping temperature. Portable for a good night’s rest anywhere. Non-gel, latex and phthalate free. This pillow relieves foot pain and relieves back pain. Products size: 21″ X 12″. You could customize the pillow to give you the level of coolness you need.