Thank you for viewing! ＼No need to ask to purchase, instant purchase is welcome!／ ✔︎ Brand new, unused item ✔︎ First come, first served for this one item ✔︎ Follow-up discount available ⇒ Click here for a list of #yumshop♬ ⚠️ Items may be deleted suddenly! Get yours quickly★ ***Product Description*** 【For use with posture support chairs - measures against the heat】 To make posture support chairs comfortable to use in the heat of summer, the DEZIYUA research and development team developed this cooling product in conjunction with the chair's structure. This cooling mat freezes naturally at 28°C, so once it's frozen into a crystalline state, simply place it flat on your posture support chair and you'll instantly feel the ultimate coolness. 【NASA astronaut standard PCM material - freezes naturally below 28°C】 PCM material was originally used by American astronauts and is now used in everyday life. This PCM material is a substance that freezes naturally in environments below 28°C, repeatedly changing between a solid and liquid state depending on the temperature, and it has the characteristic of absorbing thermal energy, especially when it melts. With this ice cushion, heat doesn't build up even when sitting for long periods of time, as all the heat can be absorbed by the PCM material. 【Reusable - no condensation!】 Our PCM cooling sheet requires no water or charging, and can freeze naturally in about 60 minutes in the refrigerator, about 40 minutes in the freezer, and about 30 minutes in ice water, or even in air conditioning (below 28°C). Once frozen, you can feel the coolness for over 150 minutes! Due to the material and special structure, there is no condensation even after this time, so you don't have to worry about your clothes getting wet, and it's reusable, not a disposable material. 【For work and study - concentration!】 PCM material can absorb heat when it melts, allowing you to feel cool and refreshed for a long time. Combined with the chair's corrective properties, you can spend your time comfortably. $679 6665 200 0527