709c592b__Bra_Size_Chart___Panty_Sizing__SOLUTION_
[PROBLEM:] Bra straps fall down. [RECOMMENDATIONS:] Measure for the proper fit and purchase only adjustable, high quality lingerie. [SOLUTION:] 
Try adjusting straps, if adjusting doesn't work, reduce cup one size.
Lingerie Bra Size Chart - Panty Sizing
SOLUTION: