The Kelty Discovery Element Footprint is a ground sheet for the Discovery Element Tent. Available in 4p or 6p, choose the one that matches your tent. Otherwise you're going to have a bad time. If you do choose the correct size, then lay this out before pitching your tent and it'll protect against ground water, dirt getting on your tent, plus act as the first barrier of defence against pesky sticks and stones. A bit of extra protection for your tent investment.