Thank you for viewing. This is a pair of Uniqlo kids' socks. I bought these about 2 or 3 years ago, but they've become too small, so I'm selling them. They are Heattech socks, so they should be warm for the coming season. The size is 16-20 cm. As you can see in the fourth photo, they have never been opened and are new and unused. Due to their thickness, I may need to open the package and repack them for shipping. Please understand this before purchasing. They will be simply packaged. How about them for the coming season? The actual color may differ slightly from the photos. Please understand this before purchasing. Please refrain from purchasing if you are sensitive to items that have been stored at home for a long time. Thank you very much.