Natural Fiber Rug Collection. Soft Sisal & Jute Area Rugs. The Natural Fiber Collection features a wonderful assortment of soft sisal area rugs as well as many other sustainable-fiber floor coverings for the home or office. Think coastal living and casual beach house style with rugs so classic they’ll even work in the city. Safavieh’s natural fiber rugs are soft underfoot, textural, natural in color and woven of sustainably-harvested sisal and sea grass, or biodegradable jute. Available in a wide choice of natural and designer colors, and sizes to fit any room, including hallway runners.