Maybe not bomb or fire proof, - Kelty Noahs Tarp

I just finished a 7 day river trip that had rain on the 1st 4 days. I am so glad that I brought a Kelty Noah's 20 to replace my (still going strong after 8 yrs of significant use) Noah's 16. The extra 4 feet doesn't sound like a big difference, but that's an illusion. 20 x 20 = 400. 16 x 16 = 256. Not only is it about 60% more coverage, but the useable footprint inside the drip line is probably more than double the 16'er, since you don't want to set up your chairs, stove, etc. in the drip zone. The strength to weight ratio is great, and if you're careful to repack it you can actually get it back in the included stuff sack pretty easily. The included stakes are kind of a joke for stabilizing a tarp this large, but they're a good replacement for the cheapo-bendos that came with my otherwise excellent Eureka XTE tent.