This really is a great bra and 100% worth the investment, especially if you are on the busty side. I’m currently wearing a 36I US/ 36G UK, and nursing. Size combined with heaviness from milk (other mommas will know what I mean), makes finding a really supportive bra very difficult. This one passed the run test this morning though with flying colors. I love love love how adjustable it is because I’ll be able to wear it even after my size changes when I’m done nursing in a couple of months. So comfortable, no chafing, and easy to get on and off. For reference I got the 2luxe and like the fit. I went off of measurements rather than cup and band size. A 3luxe would probably have eliminated the small amount of spillage that I get with the 2luxe, but it’s still adequate coverage and great support.