The Twinn Tarp by Gossamer Gear is one of the best ultralight tarps I’ve come across in a while. I’ve used a standard sil nylon tarp for a while, but wanted to push into the ultralight arena. The Twinn Tarp weighs a total of 8.5 ounces and packs down super small (smaller than a Nalgene water bottle).
Another great feature with this tarp are the tie outs. You don’t need a separate ridge line to go between two trees. The Twinn Tarp comes with cordage already attached to the 4 corners and the 2 centerline points eliminating the need for additional cordage.