New 2025 Men's Vest PCM Cool Vest Mesh Photographer Fishing Work Multi-Pocket Breathable Hiking Outdoor Cooling Heatstroke Prevention Free Size "2025 New Model / PCM Cooling / No Power Required" The latest cooling vest for 2025 is here again this year to combat the scorching heat. A PCM vest is an inner vest that provides a cooling sensation using Phase Change Material (PCM). Developed by applying space suit technology, it helps prevent heatstroke and provides heat relief. Compared to conventional PCM vests (which use 100% PCM and only last 2-4 hours), this cool vest uses a mixed material of PCM and absorbent cotton. After soaking in water and absorbing it, the advantage is that it can maintain a 27°C cooling sensation for over 24 hours until the water completely evaporates. Also, because it cools the body through physical means, it doesn't require a battery, making it convenient to use. You don't have to worry about battery explosions or sudden malfunctions. It's safe, energy-efficient, and highly recommended. "27°C Cooling / Sweat Evaporation / 24-Hour Use" This cooling vest maintains a temperature of approximately 27°C. It can be used for over 24 hours after soaking in water once. That's 12 times longer than conventional products that only last 2 hours! It significantly reduces the hassle of re-cooling when the cooling effect wears off. While general materials absorb heat and their temperature rises, this heatstroke prevention vest automatically maintains a temperature around 27°C even when absorbing and releasing heat, giving it excellent properties. It achieves skin-friendly 27°C cooling without the discomfort of being too cold. "Just Soak in Water for 5 Minutes / Removable PCM / Convenient Washing" After soaking in water for 5 minutes, the PCM blocks will automatically expand by absorbing water, and you can start using it immediately after wiping the surface water. It's very convenient. If you want even more cooling, we recommend ① soaking in water and then putting it in the refrigerator/freezer (for 10 minutes or more) or ② soaking it in water with ice from the beginning. This cooling vest is a removable type. It's easy to soak only the PCM blocks in water or put them in the refrigerator. After removing the PCM blocks, the vest itself can be washed in a washing machine, making it convenient.