ZAMST Ice Pack for Neck, Cooling, Heat Relief, Golf, Tennis, Daily Life, One Size Fits All, 387000

[Cools the entire neck area over a wide area with the cooling power of ice] [Cools the neck area by -20℃ compared to when not in use] The cooling power of ice cools the entire neck area, where major blood vessels run, over a wide area. [Maintains coolness (33℃) for approximately 150 minutes in an environment that replicates the midsummer outdoors (37℃)] The cooling power of ice maintains coolness for a long time. [Hands-free for comfortable cooling] Cooling is possible without using your hands, even when hydrating or resting. [Wide opening for easy ice insertion] The inner diameter of the opening is 54mm, so even standard household ice (approximately 30mm) can be easily inserted. [Easy to carry] It can be folded, making it compact and convenient to carry. [One size fits all] Can be used by both adults and children. Cools the entire neck area over a wide area with the cooling power of ice [Cools the neck area by -20℃ compared to when not in use] The cooling power of ice cools the entire neck area, where major blood vessels run, over a wide area. [Maintains coolness (33°C) for approximately 150 minutes in an environment that replicates the midsummer outdoors (37°C)] The cooling power of ice maintains coolness for an extended period.

[Hands-free for comfortable cooling] Cooling is possible without using your hands, even when hydrating or resting. The opening has an inner diameter of 54mm, making it easy to insert standard household ice cubes (approximately 30mm).

[Easy to carry] It folds up compactly for easy portability. It's also one-size-fits-all, so it can be used by both adults and children.