This cooling vest made of breathable mesh material is perfect for heatstroke prevention, and comes with ice packs. Please cool it thoroughly in the freezer for 24 hours before use. Depending on the situation, the cooling effect lasts for 3 to 4 hours. - Size: L - Set Contents: Cooling vest, 3 ice packs - Material: Mesh type [Product Overview] This cooling vest is the perfect item for preventing heatstroke. It is especially effective in hot seasons and during outdoor activities. [Set Contents] It comes with 3 ice packs, allowing for a sustained cooling effect. They are easily replaceable. [Size and Design] It is size L and features a body-fitting design. The navy color is stylish and can be used in various situations. We offer this at a low price with simple packaging. We appreciate your understanding. Thank you for viewing.