Snake Dog Diaper Bag. 

Perfect for running errands or going on day trips with toddlers, this multi-purpose diaper backpack will fit everything from milk bottles to wet wipes to, you guessed it, diapers. It's made from lightweight, high-grade nylon to keep it sturdy for more than one generation. The open design has one main pocket with a zipper, three elastic pockets, and one net pocket for quick storage.

.: 100% high-grade nylon
.: One size: 15.0" × 10.8" × 6.7'' (38.1cm × 27.4cm × 17.0cm)
.: Adjustable shoulder straps
.: Padded back panel
.: Cream interior lining