Thank you for viewing! I wore it once, but it was a bit too cold, haha. I hope someone who can use it will take it! ✨️✨️✨️ This is a cooling vest made with the latest PCM material, which is highly breathable and provides a cooling sensation. It requires no charging and can be used repeatedly. - Material: PCM material - Design: Highly breathable ring design - Function: Maintains a cooling sensation regardless of the environment - Usage: No charging required, reusable - Effect: Shortens the duration of the cooling sensation Thank you very much.