Introduced in 1979, The North Star is a 4 season, double wall dome designed with the features and strength needed for expedition and base camp in extreme conditions. It will accommodate 4 adults closely, 6 in an absolute pinch ..... with contortions. In addition to a zippered main entrance, the tent has double snow tunnels backed with bug netting that provide cross ventilation in the warmer months. The North Star is also a very pleasant tent for family camping. - Six equal length 183" shock