Hi i have an amoena light prosthetic with the pump. The idea behind it is you can alter the size of the prosthetic if weight goes up or down. The back is soft and would mould well to lumps and bumps. Apparently there are different shapes because our breast shape changes as we get older and this helps mimic the other. Not cheap $400 to $600 but you do get some back from medibank.
I dont know how to answer the heat issue, if you wear in a prosthetic pocket i dont think it would be an issue. Its sort of silicony. I have hot flushes 24 hrs a day so hard to say.
I have trouble with bras hurting me so i dont wear a prosthetic often but if you are ok with them it should be good.
