Feature:1. Stay Cool and Comfortable: The summer backpack cooling pad is designed to easily attach to your backpack, helping to lower the temperature and prevents heat buildup. Stay cool and refreshed during your outdoor adventures.2. High-Quality PCM Material: Made with premium PCM material, the cooling pad provides efficient insulation and cooling effects. It is eco-friendly and nontoxic, ensuring a safety and enjoyable user experience.3. 8 Cooling Zones for Optimal Comfort: With 8 cooling zones and a hollow center, the pad effectively cools without putting pressure on your spine. The ergonomic design conforms to your body for maximum comfort and support.4. Convenient and Adjustable: The long strings design allows for easy adjustment to the perfect length, ensuring a secure fit. It's convenient to use and can be adjusted to meet your specific needs.5. Perfect Size for Full Back Coverage: Measuring at 320x240mm, the cooling pad provides ample coverage for your entire back, delivering quick coolingrelief. Stay cool and out of the summer heat with this versatile backpack cooling pad.Specification:Color: BlueMaterial: PCMItem Size: 320 * 240 * 15mm/ 12.6 * 9.4 * 0.6inPackage SIze: 300 * 200 * 30mm/ 11.8 * 7.9 * 1.2inPackage Weight: 240g/ 8.5ozPackage List:1 * Cooling Pad