Rear Seat Cover

[Fletch]

Evening all,

Purchased a 2011 X5 5.0i with M-sport package a couple of months ago (I'll get some pics up soon) and am looking to protect my investment to some appreciable degree from the two human beings I love most (my 6 & 3 year olds) who have relentless ground Cheerios, fruit snacks, Hot Wheels, and I-don't-even-want-know-what-else into the back seats of previous cars.

I'm looking for something that fits snugly to the rear seats and still allows for the splitting of the seats. Quick search of this forum didn't reveal much.
Wondering if anyone has any experience with these:

BMW X5 Standard Color Seat Covers - Rear Seats - Wet Okole Hawaii

Any advice or alternative suggestions would be much appreciated.