Tarps are the simplest and lightest of all shelter and require the owner to carry almost no equipment, but a good sum of knowledge. Tarps are simple sheet of fabric with grommets or tie-off point that allow them to be attached to some sort of support structure. You can carry poles or you can use available materials to build a shelter from the tarp.
Types of Fabric
There are several types of fabric that a tarp can be made, each with its strengths and weaknesses. The fabric is the primary consideration when choosing a tarp.
Sil-Nylon, is a strong, lightweight, waterproof material that is popularly used in high-quality tarps.