This is a Mizuno ice pack neck cooler. Purchased two months ago and used only once. Blue An ice pack neck cooler that cools with ice. This convenient and comfortable heatstroke prevention item can be worn around the neck, freeing up your hands! A convenient and comfortable heatstroke prevention item that can be worn around the neck, freeing up your hands. Cooling duration after adding ice is approximately 1-2 hours (varies depending on play time and start time). Includes 1 outer bag and 2 inner bags. An ice pack neck cooler that cools with ice. This convenient and comfortable heatstroke prevention item can be worn around the neck, freeing up your hands! MIZUNO Mizuno E2MYA017 Ice Pack Neck Cooler for Men and Women, Simple, Summer, Heatstroke Prevention, Cool Neck Ice Pack