Hi girls, Im normally a 32, I have a macom in medium..not sure what size that is but its so stretchy and fits really well…but…I only wore it for a day so far as I feel like the asda sports bras (2 for £7!) give me more support and are comfier. But…they are a 34 back size and quite tight. So I think I am swollen as usually I have a 32 on tightest setting but macoms are stretchyyy. Xx