The Mountain Ultra 3 tent has a built-in ventilation system for any weather condition. Easy for one person to set up, this tent has an extra-high waterproof bathtub floor, reinforced, heat taped seams and anchor points. The clip-on rainfly for weather protection also has pass-through ventilation technology that cuts down on condensation build up. This tent has extra strong acetal buckles and webbing; the same great design as the Mountain Ultra 2 plus space for one more. It is incredibly light—under 8 pounds (including footprint ), well-built, water resistant, and has a Limited Lifetime Warranty.