If you own the Marmot Aeolos 2P tent the Aeolos 2P Footprint is a must have. Protecting the floor of your tent from rocks sticks or anything else that might cause damage will prolong the life of your tent and keep you warmer as a footprint acts as insulation between you and the ground. Marmot has designed the Aeolos 2P Footprint specifically for the Aeolos 2P tent so you will have a perfect fit. Take just the footprint poles and fly and you have a lighter weight shelter if you need to move fast & light.