The Meramac series tents are all free standing 2 pole designs with shock corded fiberglass or aluminum ferrules. The ferrules are the connectors that hold the poles together and use aluminum, rather than steel, because aluminum can never rust. The fiberglass poles are also normally one size larger than normal to offer you a sturdier, stronger tent. ALps uses lightweight but strong polyester fabrics. The walls are uncoated so the tent can breathe under the urethane coated fly. The fly uses a pole in the top, which gives you an awning over each door for excellent rain protection. The fly is full length on the sides, not 34 length like some others, for better weather protection. The tents even have factory sealed seams on the floor and fly for maximum water repellency. Entry and exit are enhanced with 2 doors, which means if you have to get out at night, you don't need to crawl over the others to get to the only door. The second door is also nice for extra ventilation in hot, muggy weather. The door zippers are a 8, which is one size larger than most, for extra durability. Mesh storage pockets and a gear loft are included to help you keep your gear organized.