The bag is durable with high quality material and it has multiple uses with different sizes and large capacity. The breathable back material and scientific design is protective for kids. Then the fashion appearance looks more attractive.

• The Estimated Delivery Date is just a setting of the Amazon, our delivery time is about 7 to 10 days
• The Medium dimensions, length*width*height: 9.1*4.7*12.2 inches; the Large dimensions, length*width*height: 9.9*5.5*13.4 inches
• More protective for kids with breathable back material and scientific design
• Multiple uses: travel, hiking and school, large capacity with multiple pockets, but lightweight
• New inventory and fashion printed pattern

The Estimated Delivery Date is just a setting of the Amazon, our delivery time is about 7 to 10 days