Preschooler Backpack Designer

I'm looking for a designer to create a unique and appealing backpack for preschoolers. Key Requirements: - The backpack should be lightweight and durable, as it needs to withstand the energetic activities of preschool children. - An understanding of preschoolers' needs and preferences in terms of size, functionality, and aesthetics will be key. - Experience in designing children's products is highly desirable. Please note, there are no specific themes or characters I want to incorporate into the design at this stage. However, creativity and the ability to propose fun, engaging designs that would appeal to preschoolers will be highly valued.