I bought some in Marks, they are nice, they bunch a bit at the side where they have no wire in them but they are nice enough and give you a nice shape under clothes. I am 9 weeks PO and bought some underwire bras in Bravissimo – they are killing me at the moment, dont think I am quite ready yet!
I got told after my 1 week check with the nurse I could wear no wire/no lace so go for it.