Cooling Sheet (For commuting, school, backpacks, rucksacks, bags, burns, bruises, sprains, pillows, etc.) ⬛︎ Continuous cooling with the latest PCM cold sensation technology Reduces back sweat as a cooling pad for rucksacks during summer outings, commutes, school commutes, and shopping. The phase change material (PCM gel) adopted from NASA technology freezes naturally below 28°C, achieving continuous cooling when combined with a cool rucksack. 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 sweat odor. Safe for use by adults and children. Designed for safety for both adults and children as a heatstroke prevention item. ⬛︎ Versatile installation for all scenes From preventing back sweat during commutes to heatstroke prevention for elementary school students, cooling during outdoor activities (fishing/fireworks displays), and multi-use for car seats/strollers. When attached to a rucksack, it functions as a cooling pad; when removed, it quickly transforms into a cool cushion or cooling pillow. It shuts out the heat on your child's back during their commute and prevents heatstroke with natural cooling that eliminates the risk of frostbite. A multi-use design that balances cooling effects and heat countermeasures. ⬛︎ Ergonomics x Lightweight Design Optimized 22 x 28 cm size for rucksacks (compatible with all types of backpacks, from school bags to outdoor rucksacks). 3D shape that fits the back for a cool, close fit. Ergonomic back fit shape + independent filling structure maintains a flat fit even after repeated use. Ultra-lightweight design of 6mm thick and 190g (50% smaller than conventional products) for excellent storage. Back pad with ventilation holes promotes cool air circulation, preventing condensation and improving breathability. Adjustable clips for easy installation in 10 seconds, even for children. ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈ Thank you for viewing ( Ꙭ ) Please feel free to contact us ❤️ Product List ▹▸ #花HANAのお店 (HanaHana's Shop) Genre ▹▸ #花HANAのお店_雑貨 (HanaHana's Shop_Miscellaneous Goods) (※) Because we are selling at a low price, we may open the box and repackage it to keep shipping costs as low as possible.