The bag has been opened, but all three pairs are unused. The exact size is unknown, but please refer to the photos. I believe these are five-finger socks for toddlers. ☆Product Details☆ 【Material】: Cotton, Polyester 【Excellent Moisture Absorption】: Excellent sweat absorption and quick-drying properties, recommended for those concerned about stuffiness. Suitable for everyday wear, as well as for kindergarten, school, outings, travel, running, hiking, camping, and various other occasions. 【Free Fingers】: Each of the five fingers is independent, allowing them to move freely. This allows the fingers to move freely, distributing the force to each individual finger, making it easier to grip the ground. 【Natural Cotton Material】: Five-finger socks are made of high-quality cotton, which is durable, comfortable, and gentle on the skin. The soft and stretchy fabric reduces pressure, so you won't get tired even if you wear them from morning till night. Moderate thickness, suitable for year-round use. 【Wide Range of Uses】: Five-finger socks cover each toe individually, offering a different level of comfort compared to regular socks. They can be used not only for everyday wear but also for commuting, school, sports, and outdoor activities. They are also perfect for small gifts. Features: Excellent sweat absorption and quick-drying properties, recommended for those concerned about stuffiness. Suitable for everyday life, as well as for kindergarten, school, outings, travel, running, hiking, camping, and various other occasions. The five fingers are independent, allowing the toes to move freely. This allows the fingers to move freely, distributing the force to each individual finger, enabling smooth footwork. The material is cotton, and these are children's socks with excellent antibacterial, deodorizing, quick-drying, and breathable properties. They don't slip inside shoes and are suitable for sports functions such as instantaneous power and muscle strength. In addition, five-finger socks are also effective for health management and hygiene. Material: Cotton, Polyester