Jack Wolfskin says about the Floorsaver Real Dome Lite III
The FLOORSAVER REAL DOME LITE III groundsheet tarp protects the tent floor from damage caused by sharp objects, stones and twigs. As a result, it significantly extends the lifespan of the tent.
The tarp, or footprint, is slightly smaller than the tent floor to prevent rainwater collecting between the floor and the tarp. The FLOORSAVER is quick and easy to attach to the tent's guying points using the elasticated loops.