Superb materials, for sublime relaxation! These five richly designed Hatteras Quilted Hammocks feature two layers of either Sunbrella our own proprietary DuraCord fabric, depending on hammock model, sandwiching a plush center of polyester fiberfill batting, all lockstitched together to create wonderfully cushiony reclining. Resistant to staining, rot, mold and mildew, both fabric brands nonetheless have a softness to rival cotton. And because they're solution-dyed, Sunbrella and DuraCord also are remarkably fade-resistant, so the vibrant hues and inviting patterns you see here will keep their colorful good looks for many bright seasons to come! Spreader bars are richly grained South American cumaru, among the hardest, handomest woods on Earth, with chains and hanging hardware zinc-plated for heightened rust protection.