meet the Sarah Wells "Kelly" Convertible Breast Pump Bag! This breast pump bag literally does it all, which is why it is appropriately named after my mom "Kelly" who manages to look sharp while taking on just about every job imaginable. The Kelly breast pump bag is BOTH a backpack AND a shoulder bag. The backpack straps can be tucked away in the backside tall velcro pocket to reveal a chic shoulder bag. The double shoulder straps can be tucked away in the front and back pockets to show off the sporty backpack feature. Or leave them both out for the most versatile breast pump bag around! Not only is this bag convertible, the dedicated breast pump pocket is also large enough for hospital grade pumps, such as the Medela Symphony. And if you have a smaller portable pump (Medela Pump in Style (with or without a case) and Freestyle, Hygeia, Freemie, Spectra S1 & S2, Ardo, Ameda, etc.), you'll find yourself with oodles of extra space in the pocket for all your accessories. Inside is a padded laptop pocket that will hold up to a 17" computer (seen in photo). The Kelly has a whopping EIGHT pockets for organization, including an awesome expandable water bottle pocket that can hold up to TWO water bottles (or sippy cups, baby bottles, etc.).