3 Popular Ground Cloths for Your Thru-Hike

A ground cloth or footprint is used to protect your tent or shelter floor from sharp objects such as rocks, sticks, pine cones, etc. that can easily puncture the bottom of your tent. A ground cloth reduces the chances of this occurring by providing a barrier between the ground and the shelter floor, and also helps keep dirt and moisture out.

a thin sheet of transparent plastic

Polycryo Ground Cloth

Polycryo is made from cross-linked polyolefin which is an extremely tough and puncture resistant plastic. Because of the high strength of Polycryo it can be made super thin and still be a useful ground cloth. The Polycryo we tested was measured to be about 0.3 mm thick and weighed only 1.4 grams per square foot.  Polycryo can be cut with scissors and modified to fit your exact needs shaving off even more grams from your pack.


  • Lightweight (about 1.4 grams per square foot at 0.3mm thickness)
  • Affordable (about $0.41 a square foot)
  • About 5 times lighter than Tyvek®


  • Slippery plastic feel
a thin sheet of paper

Tyvek® Ground Cloth

Tyvek® is a synthetic material made from high-density polyethylene fibers. It is durable, lightweight, breathable, and water resistant. It is primarily used to protect the sides of buildings and houses from the elements.  Because of these great qualities Tyvek® also makes a great ground cloth. It is also easy to cut into the desired shape. The Tyvek® we tested measured about 1.4 mm thick and weighed about 7.1 grams a square foot.


  • Lightweight (about 7.1 grams per square foot at 1.4 mm thickness)
  • Affordable (about $0.57 a square foot)
  • Thicker than Polycryo


  • Heavier than and more slightly more expensive than Polycryo
a tent tarp

Manufacturer Tent Footprint

A footprint that is designed for the tent is typically made from silicone-coated ripstop nylon. This type of ground cloth is designed for the specific tent so there are attachment points that make it easy to setup. The weight of these silicone-coated ripstop nylon (about 6 grams per square foot) ground clothes are heavier than Polycryo but are usually little lighter than Tyvek®.


  • No need to cut the ground cloth
  • Thicker than Polycryo
  • Lighter than Tyvek®
  • Easy to setup


  • Heavier than Polycryo and Tyvek®
  • A lot more expensive than Tyvek® and Polycryo