I need a fashion designer to design some swimming shorts & tops.

Start up business is looking for a talented fashion designer to collaborate with on bringing to life our vision for a new concept in womens swimming shorts and tops. The line will have 14 pieces in total but part 1 of the job will be 4 pairs of swimming shorts. I am looking for someone who understands womens bodies and can design to flatter! (28-40 year old women). Fantastic fit will be crucial to this line and whilst we have ideas - we need someone who can add real value and guidance on what will fit exceptionally well. Someone who can have a strong point of view. Note that whilst these are fashion shorts, some experience in swimwear would be helpful.