Hewolf Moisture Proof Tent Footprint Waterproof Index 10000mm for Camping Sand Beach Groundsheet Black Moisture proof footprint for 3-4 men. Prolong the service life of ur tent. It has a moisture barrier which not only can protect the bottom of your tent from dirt, mud, and sharp objects, but also can provide u a dry and comfortable sleeping place in tent during heavy rains. Notes : When u use , please put the LOGO Hewolf side facing down.