Quality synthetic yarns are precision-twisted and balanced into rope to create the hardy, uncommonly heavy multi-ply rope that is used for our signature hammocks. All of the rope exceeds even the U.S. military's exacting specification for strength. DuraCord and Sunbrella fabrics are among the most colorfast outdoor fabrics available, along with open-weave textilene poolside hammocks. Another added feature is the quality of being resistant to staining, rot, mold and mildew. Not to mention they're as soft as cotton to the touch!