’Tis the season for some hot new lingerie. But if you buy the same bra size you’ve been wearing for years, you might be one of the estimated 70 percent of women who wear the wrong size or style for their body, according to bra manufacturer Bali. Beyond a less-than-flattering foundation for your clothes, an ill-fitting bra may also result in unnecessary back, neck and shoulder pain. To make bra shopping a cinch, heed this advice from Don Allen, bra designer for Warner’s.  

• The back band should lie below your shoulder blades, and the front center part should lie flat against your body.  
• A bra is too small if you have “double-bubble,” breast tissue spilling over the front edge of the bra and at your underarm. in that case, try the next cup size up.  
• A bra is too big if cups are wrinkling and you need to make the shoulder straps very tight to get lift and support. try a smaller band size and/or a more supportive cup.