ZAMST Neck Ice Bag, Cools Neck, Heat Relief, Golf, Tennis, and Everyday Life, One Size Fits All, 387000

The cooling power of ice cools the entire neck area over a wide area. Cools the neck area to -20°C compared to when not in use. The cooling power of ice cools the entire neck area, where large blood vessels pass. Maintains a cold temperature (33°C) for approximately 150 minutes in an environment simulating midsummer outdoor temperatures (37°C). The cooling power of ice maintains coldness for long periods of time. Hands-free comfort for comfortable cooling. Cool without using your hands, even when hydrating or resting. Wide mouth makes it easy to add ice. The inner diameter of the mouth is 54mm, so it can easily accommodate standard household ice (approximately 30mm). Easy to carry. Folds up for compact portability. One-size-fits-all design. Suitable for adults and children. Cools the entire neck area over a wide area with the cooling power of ice. Cools the neck area to -20°C compared to when not in use. The cooling power of ice cools the entire neck area, where large blood vessels pass. Maintains coldness (33°C) for approximately 150 minutes in an environment that simulates midsummer outdoors (37°C). The cooling power of ice maintains coldness for long periods of time. Hands-free for comfortable cooling. Cool hands-free even when hydrating or resting. The inner diameter of the opening is 54mm, so it can easily fit regular household ice (approximately 30mm). Easy to carry. Folds up for compact portability. One-size-fits-all design makes it suitable for both adults and children.