15The Barbie Fasionistas Doll with Type 1 Diabetes 2025 Doll 242 Polka Dot is a 12-inch girl doll manufactured by Mattel. This doll belongs to the Barbie franchise and is made of hard plastic material. The doll features brown hair and brown eyes, and is designed to represent a character with Type 1 Diabetes. It was released in 2025 and is part of the modern Barbie collection, making it a unique addition to any doll playset or collection.