Great idea, but didn't work for me :-(
I loved the idea of being able to select the cup and having so many choices for back band & strap selections, etc. However, I ordered four different cup sizes (I need a large cup and small back). When I found the cup (6) that fit, the sides on the cup were not wide enough. The cup "flared" out on the sides. I also ordered a medium band, by the website help for size selection, but it was too large. No band would have stopped the flaring out of the sides... Please work on a more supportive/wider side of the bra cup and I will try again because the idea of selecting various back & strap colors is great! Easy ordering and returns!