Backpack is black to hide stains and is large enough for a 1200-mL Infinity feeding pump.
Its top opening can be cinched down with a slider adjustable lock buckle and strap.
There's also a small zipper pocket at the top of the pack for personal items.
Main compartment of backpack opens and closes with a zipper too.
Clear PVC window allows user to check pump without taking it out of bag.