●Made of polyester and TPU laminate 9" size is suitable for kids and adults ●The hot and cold compressor bag is lightweight, waterproof, foldable and easy to carry. You can use it anytime, Great for outdoor, golf, travel and injury ●TPU laminate makes this bag more soft and durable. Prevents condensation when filled with ice, making it easy to use ●When the opening is wide, it is convenient and safe to fill with ice or hot water ●Adjustable strap with velcro can be detached and carried anywhere