I bought a macom one and a m&s sports bra. To be fair both were great but I made sure I bought the M&S one in a band size bigger to compensate for swelling and they’re quite snug fitting. I’m 4wpo and had 500cc from 34b, 36dd in m&s bras fit nice whilst I was still swollen. Lots of girls rave about the Asda sports bras and post op bras but I wanted a macom to be safe as that’s whats recommended. The M&S one is really supportive and I wear that while my macom is in the wash. Hope that helps! X