Straps provide additional lift to your bra.

SOMA FIT TIP: If your straps won't stay in place and have been tightened, try a bra with a ballet back, racerback or straps that can crisscross. If straps are digging in to your shoulders, your bra is too small or you may need a style that provides better support.

A supportive band, and proper fitting cups, center front and underwire will alleviate shoulder discomfort.