Muovipeite

Bought the 8x10 for a week of tent camping and it did exactly what I needed as a ground sheet, the material is thicker than I expected for the price. Folds up small enough to stuff in my pack without a hassle.

The tarp held up through a rainy weekend at the campsite without a single tear, and the multiple size options made it easy to find the right fit for my tent footprint. The lifetime guarantee gives me peace of mind for future trips, so it's earned a permanent spot in my pack.

The lifetime guarantee sold me, and so far the 10x12 has held up through two rainy trips without a tear. It folds down small enough to stuff in my pack, which is exactly what I needed for backpacking.