I was sent home with one, but it was too small, it popped open when I took a breath lol. I had to overnight one from Amazon, and have just transitioned into the smaller one now that I'm 3 weeks po and the swelling is reducing. I tried a couple different ones, and have finally landed on this one! It's the most comfortable one I've gotten and the price is good for it. I was usually about a 36E pre-op, and I got it in a L the first time. I saw my surgeon yesterday and she told me to size down again, because it still wasn't tight enough for my breasts, so I got a M. For reference, I asked to be about a B/C, and am still at about the 34/36 bra band size. The good thing is that you can get them, try them, and return them if they don't work out, and you're not our a bunch of money. I started out with this one first, and got it in the L-XL size, and while it is the most stretchy and comfortable, it was not nearly tight enough (my fault) and I couldn't afford to keep buying them @ $40 a pop lol.
Let me know if you have any questions about these and good luck on your surgery :)❤️