Cooling neck cooler that provides comfort at 28°C, using NASA technology. - Brand: Yunos Magic Ice.28 - Size: L - Function: Uses PCM cooling material - Features: NASA technology adopted - Temperature: Usable at 28°C - Application: Heatstroke prevention - Design: U-shaped Thank you for viewing. I bought this around June of this year at Loft, but I ended up not using it, and now it's autumn. I probably won't use it next year either, so I've decided to list it. It's new, but I've taken it out of the box to touch it and spread it out a little to see what it's like. Thank you for your consideration.