A double-wall tent features two layers: a non-weatherproof canopy protected by a wind-blocking, waterproof rainfly. A single-wall tent is a single layer integrating the weatherproof properties of a rainfly into the canopy. Each type of tent offers different advantages and disadvantages. The choice between the two styles is a matter of personal preference, priorities and the climate in which you will use it.
Double-Wall Tents
Double-wall tents are made up of a tent and a rainfly. The tent has a waterproof floor, and the waterproofing extends a few inches up the tent walls to protect areas exposed below the rainfly. The canopy hangs from the poles by clips or sleeves. The canopy fabric is generally a combination of material and mesh. The waterproof rainfly drapes over the poles, creating an airspace between the fly and canopy, covering the entire tent nearly to the ground, and providing a protected space for gear outside the door.
Single-Wall Tents
Single-wall tents feature a waterproof floor and canopy, eliminating the need for an outer rainfly. Single-wall tents can include an add-on waterproof vestibule to create a dry space for storing gear outside the tent. Screened doors, small windows under awnings or other openings provide ventilation. The tent can be suspended from the poles using clips or sleeves, or the poles can hold the tent up from the inside.
Hybrid Tents
Hybrid single/double-wall tents incorporate the features of both styles of tents. These tents feature a partial rainfly to protect the mesh portions of the canopy and provide external vestibule space for gear. Exposed portions of the tent not protected by the rain fly are waterproof.
Benefits
Double-wall tents typically feature generous amounts of mesh. Mesh windows and walls allow air to move easily through the tent, keeping it cool and dry. Single-wall tents can be almost completely closed off from air movement, keeping the interior warmer in cold temperatures. Single-wall tents use less material, thus usually are lighter than double-wall tents. Hybrid tents provide more ventilation than single-wall tents, but are lighter weight than double-wall tents.
Disadvantages
Double-wall tents with the rainfly are typically the heaviest tents. Single-wall tents are not as well ventilated as double-wall tents, and they often have condensation issues. Heavy condensation can run down the walls, forming puddles in the bottom of the tent and getting gear wet. The lack of ventilation also can make the interior of a single-wall tent uncomfortably warm in fair weather. Hybrids also might have condensation problems.
Making the Choice
Single-wall tents are warmer and more weatherproof than double-wall tents, making them the best choice for staying cozy in the cold of late autumn and early spring. Single-wall tents are lighter weight, making them a potential weight-saving option for ultralight backpackers. Double-wall tents are more comfortable in warmer climates and seasons. You can reduce the weight by leaving the rainfly behind when the nights are warm and no rain is expected.
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