Fitting the Bra
The hook and eye should be fastened securely but comfortably on the middle setting. Whether the bra is fastened at the back or fastened at the front and moved round to the back, the woman should always bend forward and make sure the wires are positioned under the bust. She should then stand upright and move the breast from the underarm if necessary so that it is inside the wire. She should then part the bust at the centre to make sure the centre front of the bra is sitting correctly between the bust. The straps should be adjusted so that they are firm, but not too tight
Most of the support should come from the cups, under band and wings of the bra rather than the straps. The straps should be secure and should not dig in. If the correct band size and cup size is worn there should not be too much pressure from the straps and they should be comfortable.
A bra will lose its support over time due to extensive washing and wearing. So it is important to replace them when they are no longer supporting the breasts adequately.
Bra Fitting Guide