Thank you for viewing! ❤ We are offering a limited-time follower discount! ✨ You can purchase at a great price, so please consider it! ♫ #yui_shop list Please read the profile before purchasing! ❣️ ✿.•¨•.¸¸.•¨•.¸¸❀✿❀.•¨•.¸¸.•¨•.✿ ⭐ Brand new ⭐ One-of-a-kind item! First come, first served! ❣️ Persistent cooling with the latest PCM cold sensation technology: Reduces back sweat as a cooling pad for backpacks during summer outings, commutes, school, and shopping. Phase change material (PCM gel) adopted from NASA technology freezes naturally below 28°C, achieving continuous cooling in combination with a cool backpack. Keeps you cool for 60-90 minutes in an environment of 25-35°C (more energy-efficient than conventional cooling materials). The physical phase change principle, like "ice that doesn't melt," keeps your back cool and prevents body odor. Safe for use by adults and children. Designed for safety for both adults and children as a heatstroke prevention item. ✿.•¨•.¸¸.•¨•.¸¸❀✿❀.•¨•.¸¸.•¨•.✿ If you have any other items you're interested in, we can also accommodate combined purchases ✨ ↓↓↓ #yui_shop list Thank you for viewing! ❤ 6 5 646