Mountainsmith makes a number of multi person tents, but the Mountain Shelter LT Tarp is by far its lightest two person shelter. Spartan by almost all standards, this tent is comprised of only a single door, it utilizes a single wall design, and there's no floor. At just two pounds, the Mountain Shelter is three pounds lighter than its big brother the Morrison, and this tarp pitches without poles. Just slide a pair of trekking poles in under the tarp, pitch the corners, tension the guylines, and you're good to go or use the two top points to connect to tree branches. This is an excellent minimalist option for backpackers looking to save weight and pack space without giving up vital protection from the weather.