Rating: 5 / 5
This is exactly what I've been looking for in a groundcloth. Extremely lightweight(1.5 oz.) AND tough.
Before coming across this I was using a space blanket(3 oz.) which, if I was lucky, would give me 3 or 4 nights of use before starting to shred.
I used my polycryo ground cloth on an 11-day backpack in Dark Canyon, UT on sand, sandstone, and pine needles. I've also used it 4 nights in the Wasatch Mtns on your typical forest floor(pine needles, roots, rocks) and it's still going strong. No holes larger than pinhole size yet.
Gossamer Gear ships the small and medium in a 2-pack so you even have an extra...at just $5, it's a steal!