Got this nice little lightweight tarp when I bought the Sierra Designs Lightning 2 Tent. It is pretty good and seems sturdy (my clumsy self hasn't ripped it yet!). I suggest getting it to protect your tent, its not that expensive and its got to be cheaper than replacing the bottom of the tent! In addition to using it for the tent, I have used it (in combination with some 550) as a lightweight tarp above my hammock. AND in addition to that I have used it as a lightweight tarp to sleep on when there are clear skies. Overall, I would suggest getting this either by itself or in addition to the tent. It's a quality tarp!