2-Pack MoApple IPOD TOUCH 5TH GENERATION Stealth Shieldz FULL BODY Screen Protector Front+Back (Ultra CLEAR)
The material is very well made.  My experience with the backside protector is that its strong, although the corners is subject to get dirty if the protector is rubbed and subject to warmth and moisture.  It could get dirty on the inside and once its gets dirty its difficult to fix.  I had to trim back the plastic after a time.  But for the first few weeks (if not months) it held up superbly.