The special blend relaxes faster and stays flat. The included PVC mat makes sure your beautifully braided jute rug stays exactly where it should. Black & Tan Jute Rug Oval w/ Pad 36×60. Jute Blend – This rustic area rug is constructed with tightly woven braids made of 80 percent jute and 20 percent cotton and other fibers for a heavier rug that relaxes faster and stays flat.