The Extreme 3 Tent from Alps Mountaineering is a free standing aluminum pole tent, with a configuration that is extremely strong and sturdy. The 3 pole design gives you more framework to combat Mother Nature when she decides to send you a little stronger storm than normal. Assembly is easy with pole clips that quickly snap over the tent poles. The polyester fly and floor are urethane coated, with factory sealed seams for maximum weatherproofness. A door on each side of the tent makes getting in and out of the tent easy. You also get two large vestibules that you can use for extra gear storage. The vestibules also serve as automatic guy out points when the weather gets a little nasty. The fly buckles to the tent, offering a much more secure attachment when compared to elastic cord. Mesh roof vents increase ventilation and improve star gazing.