Want to add an extra layer of durability to your First Arrow tent? This groundsheet is made from the same high-tenacity, 8000mm HH waterhead nylon fabric as used in the X series Arrow tents, offering complete waterproof protection in the wettest conditions. Use this groundsheet with your inner, or on its own to transform your Arrow tent into an even lighter shelter for summer. The complete tub means water moving across the ground isn’t an issue.