This product features a medium size (with a maximum length of 30-50cm) and is designed as a backpack with a zippered closure. It is made of high-quality PU/PVC material with no harmful chemicals, making it safe for parents and children alike. Measuring 15.75 inches in height and 9.84 inches in width and length, it is ideal for use by children 12 years and older. The solid color pattern adds a stylish touch to this multi-functional, waterproof outdoor diaper bag, perfect for moms on-the-go.