The Onyx Black back pack features a two zipper large opening top flap making it quick and easy to reach in for all those baby essentials. It has a large zipper front pocket for storing a mobile phone, car keys etc and this back pack features a bottle pocket on either side. On the base of the bag is a very handy but hidden dirty nappy zipper compartment. All this in a super compact back pack which comes with a lightweight wipe cleaning mat.