Used only once. Size is 37. The color is a stylish olive green. I think it's suitable for people who usually wear 23-24 cm. For reference, I have wide feet and am 24 cm, so it felt a little small with regular socks. I'm selling it because I wanted to wear it with thick socks. The inside is soft and has comfortable cushioning when walking. These are high-quality gore boots. I believe the green part is synthetic leather. The sole is about 4 cm. Please note that these measurements are approximate. Thank you for looking.