My favorite thing about the Sarah Wells Kelly bag is that it's convertible - you can use it as a tote or a backpack.
The side pocket that you put your pump in large enough for a Medela hospital-grade pump, and a Spectra will fit easily.
Inside, there is space for a wet bag with pump parts, a cooler, and more accessories. It has a laptop sleeve and an inside pocket for organizing stuff.
The outside has three additional pockets, including a zippered one for keys/wallet/phone 🔑
I think this is a great option, especially if you have to walk long distances as part of your commute. My affiliate discount code is
for 15% off.