Loofah!
I've been using loofahs since back in the '70's. Over the years, I've tried natural bristles, synthetic bristles, silicone bristles .... Other back scrubbers were either too stiff, too soft, or just didn't live up to what they were made to do. To  me, nothing feels as good to me as scrubbing with a loofah. The little buggers last forever & get the job done. They exfoliate beautifully & hold even liquid soap easily. I live in Central FL so exfoliating is almost a daily thing &, in Goldilocks world, this is just right.
Rating: 5 stars