Features: Experience superior cooling Performances with our Strong Nylon Cooling Belt featuring a 360 degree Air Intake design. This innovative waist belt is equipped with a 3B Quick Connection Couplings, ensuring easy setups and efficient airflows for all your cooling needs. Perfect for outdoor activity or industrial applications, this belt provide reliable comfort and functionality. The adjustable design ensures a secure fitting for users of various size , while the lightweight nylon material offers durability without compromising comfort during extended wear. Whether you're at a job site or enjoy a day outdoors, this device guarantees best airflows and Performances when pair with Suitable cooling systems. Specifications: Material: nylon Filter size: about 8x5x5cm/3.15x1.97x1.97inch Cooling size: about 180x100x35mm/7.09x3.94x1.38inch Package Includes: 1 set Cooling Vests Adapters note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.