When you see a woman on-the-go with this tell-tale black tote, you know she’s part of the sisterhood of the traveling pump. The Medela Pump in Style is a top pick, especially among working moms. Everything is self contained in the bag for easy set up and storage. It comes with a battery pack or can be plugged into an outlet. Heads up: the motor is a bit loud, so be sure to hit mute on those multi-tasking conference calls.