Thank you for viewing. This is a cooling vest set with ice packs. I am selling it to someone who needs it, as I will not be using it after purchase. Please consider introducing it to prevent heatstroke. ■ Product Description Star of Life is a mark that symbolizes emergency medical services, born in the United States in 1973. It is widely used around the world as a guardian for those involved in emergency medical services and life-saving organizations and staff. This cooling vest uses "Ice Trust," a special low-temperature ice pack that achieves an overwhelmingly long-lasting cooling sensation. The raw material of Ice Trust does not contain polymers, so it causes convection inside, removing heat with an overwhelming heat exchange rate and maintaining a low temperature. Furthermore, it keeps the cold state with a special technology that suppresses the temperature rise of the liquid. The length of the shoulder part can be adjusted with Velcro, so it fits the body easily. Brand: Star of Life (for adults) Ocean Pacific (for children) Item: Cooling vest / Ice vest Product number: 124430 Size: Adult size: Free size Size can be adjusted with Velcro on the shoulder Material Vest: 95% polyester 5% polyurethane Weight: Approximately 60g Ice pack (Ice Trust): Water, salts