Planning a trip where pack space is at a premium? Consider taking the freestanding, double-walled Nimbus UL 2. The tent body and fly compress down to the size of a Nalgene, and the single pole folds down to 17 inches in length. “It doesn’t even need its own stuff sack,” one tester said after a multiday trip in Colorado’s Gunnison National Forest. “I was able to pack it into a medium-size dry sack alongside other items.” The Nimbus UL 2 has a single, hubbed aluminum pole, and the back sides are guyed out using pre-installed loops. A three-quarter mesh body creates 28.1 square feet of floor space. That said, the Nimbus UL 2 is a tight squeeze for two sleepers, and you’ll have to climb over your bags to get out of the single door and its small, 7.6-square-foot vestibule.