These are flat shoes from "VIVAIA," an American shoe brand that uses sustainable materials. They are lightweight and easy to walk in. Made from recycled knit material from plastic bottles, they are environmentally friendly and offer a comfortable fit. The size is 37.5. It was stated that this would fit someone who wears approximately 23.5 to 24 cm in Japanese sizes. I usually wear 23 to 23.5 cm, but my feet are narrow, so these felt a little too big. I have only worn them twice. I recall the purchase price was around 17,000 yen. Would anyone looking for these be interested? Color: Blue系 (Blue-ish) Toe: Square toe Stains, tears, odors, etc.: None Comfort shoes Bunion