The Sierra Designs Sirius 2 Fast Pack Tent Footprint adds function, durability, and versatility to the Sierra Designs Sirius 2 tent. Using the Fast Pack footprint will greatly increase the life of your tent's floor. Footprints protect your investment from dirt, gravel and sharp objects. If mild weather or a particular trip demands a fast-and-light approach, then try "Fast Pack Mode" using just the Fast Pack Footprint with the rainfly and poles to make an ultralight shelter. On average, it accounts for a weight savings of 30%, making it another tool in your fast packing arsenal.