I only checked the operation to avoid any issues! It's practically new as I haven't used it! The retail price is around 160,000 yen, as shown in the image, making it an expensive item! I'm open to a small price reduction... A Peltier-式 water-cooling vest that circulates cold water without the need to prepare ice. It's a rather interesting vest with potential. Let's definitely get through the still-hot summer! - Model Name: MedeAid Icing Gear Vest 2 - Size: M-LL (Chest: 86~105cm) - Cooling Time: 5 hours - Temperature Range: Usable in environments of 35℃ or higher - Function: Peltier cooling function I'm looking forward to your comments ^_^ Of course, you can buy it immediately ^_^ Thank you for looking.