One item only!! ✅ Free shipping ✅ Brand new, unused ✅ Immediate purchase OK お得な情報と必要事項はプロフィールにございます！ Please check the profile for valuable information and important details! Please be sure to check before purchasing! ⭐️ Size: 25 x 31cm ⭐️ 【Freezes naturally below 28°C & sweat対策】 This cooling sheet/cold sensation sheet helps prevent stuffiness in backpacks and uses PCM material, which is lighter than water and instantly becomes cold. PCM is derived from palm oil from the coconut family and freezes naturally at room temperatures below 28 degrees Celsius. This cooling pad for backpacks is lightweight and doesn't cause fatigue even after prolonged use. The cool back pad doesn't get too cold like ice, so there's no risk of cold injury, and it's gentle on the skin, making it a recommended heat対策グッズ for those who don't like air conditioners! 【Please note】For use, it is recommended to cool it in the refrigerator's freezer for 5-10 minutes before use to enhance its effectiveness. ⭐️ 【活躍 in various scenes, for summer back sweat対策】 As a summer heat対策, this cool sheet is perfect for back sweat and stuffiness and is easy to match with any backpack. The size is 25*31cm, and it is recommended for outdoor backpacks, school bags, children's backpacks, business backpacks, as well as car seat cushions and strollers. As a heatstroke対策グッズ, it can be used with peace of mind by adults and children. ⭐️ 【Long-lasting coolness & reusable】 The contact cold sensation pad for school bags uses innovative cold sensation material and does not cause condensation, so it won't wet bedding or clothing. The backpack back cooling pad keeps your back cool even when you're wearing a backpack. The backpack cooling pad is perfect for preventing stuffiness and heat in backpacks. 【Japan's first! Freezes naturally at 28°C】 New for 2025 Backpack cooling pad Heatstroke対策 Cold sensation pad Backpack ice mat Ice pillow Heat対策グッズ Ice pillow Ice bag School bag cooling pad Cool mat No condensation Cooling Reusable Cold sensation mat Heat absorption Long-lasting Cool cool sheet Instant coolingグッズ Coolグッズ Cold sensation pillow Cool Commuting to school Commuting Indoors Outdoors Outing Anniversary Birthday present No.197 D75-0? Sp10-00