Hands Free Pumping Bra Questions

Liz

FTM here- I will be returning to work about 12 weeks after our Little Miss makes her arrival and plan on pumping at work. I would like to get a hands free nursing bra to make it easier but wasn't sure if a) I should be looking for one that I wear all day at work or only when pumping or b) if there are some that are better than others.

Any help or advice will be greatly appreciated!