This is a pretty heavy duty tarp. The one night I spent under it, I found out the next morning we had a tornado pass by 6 miles east of where I was. Moisture never made it through the tarp in the 12 hours I was under it. I was more impressed with how well it did in the wind, but I guess that's kind of what that cut of tarp is designed for. The fabric doesn't stretch much or at all. Which is nice, but also with the cat cut it makes it limiting as far as pitching it in another setup other then a flying diamond. I think the tarp weighs just under 1.5lbs.