Clothes for exclusively pumping?

Hey Mommas, need suggestions for clothes for exclusively pumping. I purchased some nursing tanks and tops from destination maternity, but they really didn't work for hands free pumping, so I returned them. I haven't been able to find any tops for pumping, mostly everything is for nursing, which doesn't work. Any suggestions would be great. I also go back to work in a few weeks and need some good work clothes that I can pump in without completely taking my top off. Thanks!