Ultima / Comfort Large Rugs. Shaggy rugs offer plain but stunning rugs at very competitive prices. Ultima rugs are made from 100% heat set polypropylene the pile is 4cm long and is densely woven to give a luxurious chunky pile. This range is colour-fast, anti-static, stain resistant and anti-shed. Ultima rugs are made in a vast array of sizes including a circle, half moon shape and a runner.