Royal Brisbane 4 / Atlanta 4 Footprint Groundsheet
Tent Footprint Groundsheet's are designed to fit perfectly under your tents sewn in groundsheet to provide additional protection against stones, thorns and other sharp objects that could damage it. They also help to keep your tents groundsheet clean, making it easier to pack away and look after. Another advantage is they provide a pitching guide when erecting your tent. you simply lay the footprint groundsheet out where you are going to pitch your tent, so you know your tent will be in the correct place.
Always make sure that the footprint groundsheet does not extend beyond the tents sewn in groundsheet as this will only funnel water under the tent and trapped between your tent and footprint. This is why footprint ground-sheets are designed to fit each model tent and cut slightly smaller than the tent.
What the manufacturer says:-
The Royal tent footprints provide additional protection for your tents groundsheet and are designed to fit the specific tent model and size covering the living area of the tent.
Marks out the position clearly when erecting the tent
Keeps the tent clean when erecting
Protects sewn-in ground-sheets from stones, thorns, etc..
Keeps the rest of the tent clean when packing away as without a footprint, the tent will be wrapped up together with the wet and dirty sewn-in ground sheet as it is attached at all times
Can be folded up relatively small, and easily cleaned once you get home