Because of this, more cup sizes can fit your breasts, if the band size changes. You can do this with naked breasts, but you will get a better result if you do it wearing a bra. I think it sets a standard of being educated in the manners of biology not religion or culture, biology. The daily strain on my back, neck and shoulders is almost unbearable. I have breastfed all of my 4 children and I have done it whenever and however I wanted it.