Anita Response: The material of #5600 only allows stretching to a certain degree because otherwise the material wouldn't give enough support especially in bigger sizes.
Some consumer especially with smaller bra sizes don't need the support and are used to bras with less supporting but more stretchy material.
The straps of a #5600 34C have a 0.11 inches front/shoulder part and a 0.8 inches back part. This is a regular width for straps in size 34C. Unfortunately the consumer doesn't explain, why the difference between the front/shoulder part and the smaller back part is odd for her. Lindy from California