This Waterproof USB Mommy Nappy Diaper Backpack is a great option for moms on the go! Measuring 28CM in length, 40CM in height and 18CM in width, this backpack is spacious enough to carry all your essentials while still being small enough to fit in any diaper bag. The waterproof material ensures your belongings are safe while the USB port ensures you can charge your phone on the go. Make your life easier with this perfect backpack.