Thank you for looking. Only tried on. Size M *The bag in the photo is size S, but the actual item is size M. *The bag in the photo is not included. It will be packed in a different bag. Regular retail price ¥3980 (new model on Rakuten) This is the old design. I am also listing size S, so please take a look if you are interested. This is a used item and has been stored at home, so please refrain from purchasing if you are sensitive. *Packaging materials are reused. I will pack it as small as possible. For other details, please read my profile. I would appreciate it if only those who understand these points would purchase. Shipping method may change between RakuRaku Mercari便 and YuYu Mercari便. If you have a specific shipping method request, please let me know before shipping. It has a cooling effect that keeps your body temperature at -12℃ with a plant-based ice head using NASA technology. - Model Name: Smart eco ice - Features: Uses NASA technology - Cooling effect: -12℃ perceived temperature reduction - Material: Plant-based material - Usage: Used as an ice head #Hat cooler #Heatstroke prevention