Clinically tested, the Cool Wrap is designed to deliver 58 degrees cooling therapy and can help treat hot flashes, MS, and heat stress. Features a plant-based phase change material that cools to a soothing 58 degrees and can easily be refreshed in the refrigerator and reused in 30 minutes. The Cool Wrap has been clinically shown to significantly reduce hot flashes in most women by up to 75% after four weeks of use. For women with MS, 75% of women who participated in a clinical study reported good to excellent results for relieving symptoms. Stays cool approx. 60-90 minutes. Latex-free and made in the USA! To clean, wash with mild soap and water then air dry.