Most of the cases offered here are Dual Layered. Check them out :)

http://www.modnmall.com/electronics/cell-phone-accessories/samsung-accessories/galaxy-s5-accessories/caseology.html

They also sell on Amazon.

http://www.amazon.com/dp/B00K26EVDO/

The two layers are pretty much interchangable so you can swap them if you have different colors XD