When it comes to tent longevity, we've got you covered. DragonflyFootprint is not for waterproofness; NEMO floors already are impenetrable to water. Rather it protects your tent floor when camping on rough surfaces, adding longevity to your tent. Made of 75D PU Polyester, it stands up to gravely and sharp surfaces that can take a toll on your tent. It packs small in an included breathable mesh pouch with a drawstring. 5D PU Polyester Taffeta is durable and resists wear from sharp and gravely surfaces. Waterproof to keep the bottom of your tent from getting wet and dirty. Attaches securely to Dragonflywith grommets to perimeter points. Sized to fit underneath tent without being visible. Included mesh bag with drawstring for storage and transport. Protected by the NEMO Lifetime Warranty.