Im currently using a clear matte skin on the back that I purchased from -
http://www.stickerboy.net/products/c...e-6-plus-skins
I tried using my 6 plus without a case as I really like the size and feel without one but it was a little slick to hold onto. The stickerboy skin is perfect since it enables the phone to be gripped a little easier without fear of slipping out of my hand. It doesn't offer any drop protection but that is ok with me since I have apple care plus. I'm really careful with it and haven't dropped it yet. I use a zagg tempered glass protector on the screen.
