Your child will be the talk of the playground with wildkin's 15 inch backpack! It's just-right size is perfect for packing all the essentials, plus some snacks! We’ve designed our backpack to withstand even the toughest, homework-filled school days. Made from super durable fabric with a moisture-resistant nylon lining, the 15 inch backpack is capable of handling anything you throw at it – both inside and out. Blue.