Super tough and relatively light
This Tyvek sheet is exactly what I needed for my Duo. This is my second one because TSA lost my first one. I think I am going to try washing this one. They are a little loud at times.
Perfect size, quality and light weight but tough.
Way too slippery with an already slippery floor. I know about the washing machine washing it jack. Using an older REI half dome footprint and works better for me. Packs down much smaller.
I bought the Tyvek ground sheet to put under my air mattress, which is suffering from small pokes on the desert floor. It seems to be better than the thin sheet of nylon I was using, but time will tell.