It depends on the fit and style of sports bra you are interested in buying. I would suggest going to a bra store and getting fitted for this thing and then checking out several different stores to see if they have any bras you like.
Get yourself fitted.
14
There is no need to wear a bra under a sports bra, because sports bra has the function of supporting breast at right position, the key point is that you need to choose a good sports bra.
No
Everyone is different it depends you will have to get your bra fitted at a shop.
All you have to do to find out your bra size is go to any bra and underwear shop, get your self fitted and buy a bra of your size.
Any shop that sells bras.
Most likely not but just to be cautious, you should get a fitted bra.
you can have your bra fitted. it is usually free you can have it done in lots of places marks and spencers, bra shops and more. hope this helps
she wears a sports bra.
Of course. A sports bra merely offers more support than a regular bra.