Hi, I bought a macom bra and an M&S post op bra- I find that the m&s one is much better than the macom comfort wise. My macom would just dig in at my sides and be really painful. Hope this helps
I have the M&S high impact bra the £25 one and have found it to be so supportive,id definetly say go up a back size though as there small on the back xx