The underband provides 80 per cent of the bra’s support so it should be firm but comfortable. It should be horizontal all around the body and should not ride up at the back at all.
If the underband is too big, it will be loose and ride up at the back, you may even have to overtighten the straps to compensate. Try a smaller back size but increase your cup size, so for example if you are wearing a 40D, try a 38DD, if the back is very loose you may need to try a 36E
If you are worried going down a bra size will cause bulges, just wear your underband an inch lower at the back, it will sit on a narrower part of the body and minimise any bulges. Also look for bras with wide wings from specialist brands Elomi, Goddess and Glamorise
The straps should only provide 20 per cent of the support. If the straps dig in then it could be because the underband is too loose and the straps are having to do most of the work to support the bust.Try a smaller back size but increase your cup size, so for example if you are wearing a 40D, try a 38DD, if the back is very loose you may need to try a 36E
If the cups are too small then your breasts will bulge over the cup or at the side of the bra. Try a larger cup size, so for example if you are wearing a 44E, try a 44F. If the cups are wrinkled and the neck edge is loose, then the cup size is too large. Try a smaller cup size, so for example if you are wearing a 44E, try a 44DD.
It is quite normal for women to have breasts of different sizes. Fit your bra to the larger breast and tighten the smaller breast’s strap slightly.
The underwires should sit flat against your chest at the centre front. If the underband lifts away at the centre front then this is because your cups are too small and the breasts are pushing the centre front away. Try a larger cup size, so for example if you are wearing a 40D, try a 40DD
The Bra Sizing System was established in the 1930’s by Warners when the average body shape was very different, and it’s difficult to take into account body shapes. So many lingerie boutiques do not use tape measures and fit by expertise and eye to the above criteria. However if you prefer this bra sizing system, try our chart
1. Wear your best-fitting non-padded bra and face a mirror
2. Use a flexible measuring tape, wrap it snugly around your ribcage just under your bust, a willing volunteer can help or you can do it yourself
3. The tape needs to lie flat and be level all the way round.
4. Round to the nearest whole number in cms. This is your underband size.
5. Wrap the tape measure around your bust at the fullest point (over your bust point) and round to the nearest whole number in cms.