I had no idea this existed, and I'm so glad I found it. I keep this accessory in my pump bag I take to work, so I can wear any other nursing bra with Webster outfit I'm wearing. I just wrap the bottom around my chest, clip it onto my nursing bra, and am able to work on my laptop in the pumping room. I agree with some reviews that they run small. I got a medium and had to add a bra extender, which was probably a fair tradeoff for me because the cup size of a large may have been too big. The material is sturdy and the slots for the flanges are still tight and not stretched. Definitely recommend.