Reposhing this item I purchased from @meganredford. Loved it, but ready to rotate for something new. The pumping slits do have some stretch to them, they were that way when I bought it, previous posher was upfront about it. I didn’t have issues with my flanges, but I decided I didn’t like to have to feed my flange backwards through it. Super comfy just not as simple to set up pumping for me. I use a spectra pump.