Zagg sells the transparent Invisible Shield.
That doesn't look like it is for the back I am afraid
clear Con-Tact paper FTW.Seriously, that is what I use and it works great.
I always have Zagg install invisible shield on both front and back, and my IPPro 10.5 has both.
Check out the skins from bestskinsever.com, they're pretty much InvisibleShield but much cheaper, and have matte and glossy options. I've used them on many of my previous devices and I've had nothing but success!
Edit: I don't know which iPad Pro you have, but here's the direct link to the iPad category. http://www.bestskinsever.com/tablets/apple-ipad