The Mountain Ultra 1 micro-mesh inner tent provides optimal ventilation in any weather. This tent has an extra-high seam sealed bathtub floor, only one shock cord bungee pole, reinforced, heat taped seams and anchor points. The clip-on rainfly for privacy and weather protection also has pass-through ventilation technology, and the rainfly vestibule keeps water off sleeping area at entry. Ultra light—only 4.5 pounds (including footprint and ground stakes), well-built, and water resistant, this tent has a Limited Lifetime Warranty.