Mountain Hardwear balanced space, strength, and compact packability in the ACI 3 Tent for 8,000-meter expeditions. Its 4-season construction includes ripstop fabricated with impressive waterproof ratings, and Evolution Tension Arch utilizes strong, non-stretch pole sleeves to ensure stability in high-altitude environments. Four zippered vents and a full-mesh door giver versatile ventilation on summer alpine trips. For winter, the snow port provides emergency access following a snowstorm. DAC Featherlight NSL poles give sturdiness without much weight.