I carry 4XL supple nips on my breasts when preparing for a pumping session. That's why I need the XL flanges.
I wear a maternity bra, which supports the supple nips until I am ready, then I unclip the bra cups and use the underwires to support the breast pumps until I get a good deep latch.
After being sore from pumping, I clip up my bra cups again to support the silicone nipple protectors which I need for comfort.