A proven ventilation system with openings in both ends of the tent. Each vent has a fine mosquito mesh for good air flow and a cover made of uncoated and permeable fabric to keep fine snow from entering; both layers can be operated from the inside and the outside by zippers. With both covers opened you will get a high level of ventilation, and with both vents open you can create a cross-flow of air through the length of the tent. Even with both vents closed a reasonable level of ventilation remains. They are positioned in a fashion that rain and driving snow cannot get in.

Both vents function as windows when the entrance is closed.