Tyvek is a great material for ultralight backpacking and for protecting the bottom of your tent!
It is strong, light weight, smooth and resistant to water, rot, mildew and abrasion. It has a high strength to weight ratio and when you wash it, it becomes softer, quieter and more manageable. It won't bunch up under your tent like other materials.
Sold by the foot, the roll width is 9 feet and the min order length is 3ft. Place a quantity of 3 = 3ft - The price listed is per foot.
WASHING YOUR GROUNDSHEET PRIOR TO USE:
You want to make sure you allow extra width and length when cutting your footprint because after you've washed it, it shrinks approx 5%. Wash it on a cold cycle with mild soap. Do not put in the dryer or iron the tyvek as it will melt.
I suggest putting in for 2 short cycles with cold water.
Note: Sold by the foot - Min order is 3ft.
This is not Tyvek 1443R but the thicker Homewrap Tyvek.