DIRECT COOL Mesh Cool Backpack - 2025 Model

This is the model number DC-B04S(B) for YAMAZEN's water-cooled wear DIRECT COOL Professional Model. This cooling vest works by filling the tank on the back with cold water and frozen bottles or ice packs, circulating cold water through tubes to directly cool your body. Key Features: High Cooling Power: Since water cooled by frozen bottles circulates through your body, stable cooling effects can be achieved even on extremely hot days. Quiet & Compact: No fan is used, making it quiet and preventing clothes from becoming bulky, allowing it to be worn under work clothes or protective gear. Professional Model: Compatible with a large-capacity dedicated charge bottle (900ml) for long-lasting cooling.

How to Use: Fill the tank with approximately 200ml of cold water. Set the frozen dedicated charge bottle (or ice pack). Connect a separately sold mobile battery (5V/2.0A or higher recommended) and turn on the switch.
Please note that the mobile battery is not included.
Please prepare your own mobile battery of 5V/2.0A or higher. Currently, a 5000mAh battery can be purchased anywhere for around 1,500 yen.
Although it is new and unused, it has been in someone's possession once, so please refrain from purchasing if you are overly sensitive.

Reference Price: Amazon 18,800 yen (as of May 2026)
Some price reduction is negotiable.

- Brand: DIRECT COOL
- Accessories: Ice pack
- Design: Mesh backpack
- Size: 350g (ice pack)

Thank you for looking.
#DirectCool
#WaterCooledWear