Airweave's S-LINE pillow, made with breathable mesh material. Purchased in February 2024 at the Tobu Department Store in Ikebukuro. I used it for about 3 months, but it was too low for me, so I switched pillows to match my Brain Sleep mattress. - Brand: airweave - Model Name: S-LINE - Included: Storage bag, 2 sheet cores, warranty - Material: Mesh fabric Purchase price: 33,000 JPY (tax included) I used a cover when using it. Please note that this is a used item, although it has been washed and air-dried. It will be shipped in bubble wrap with simple packaging. The following is quoted from the official website: Excellent breathability, a clean pillow improves sleep quality. The head gets the hottest during sleep, and some pillow materials can get stuffy. The core material of the Airweave pillow is 90% air fiber®. It is lightweight and highly breathable, and moisture does not accumulate inside. Excellent breathability lowers the core body temperature and creates a comfortable and deep sleep environment. Also, the cover can be washed in the washing machine, and the core material can be easily washed with a shower, so it can always be kept clean. This product is highly recommended for those who sweat a lot during sleep. Experience comfortable sleep with the Airweave Pillow S-LINE, backed by sleep research.