What is a single-wall tent and what is a double-wall tent?
Most people are very familiar with double-wall tent designs—they feature the canopy of the tent (the first wall) and a separate, removable rainfly (the second wall). While the rainfly offers a lot of versatility (offering not only protection from wind and rain, but privacy and UV protection), it can make the tent that you carry into the backcountry somewhat heavy. This is why single-wall tents were developed. Instead of having the weight from that extra piece of material that some people might decide to be excessive, the tent canopy is made from the same waterproof material that is used in rainflys. By offering the same level of protection from rain in the canopy, the result is a lighter tent which also offers simpler set-up (even in rainy conditions).
