Billy Royal® Alpaca Straight CinchBilly Royal Alpaca Roper Cinch This roper style cinch is made of natural alpaca fiber with center D rings, so it's strong, comfortable, durable, and hypoallergenic. 27 strand natural alpaca fiber is very strong, comfortable and durable Naturally hypoallergenic, Alpaca is great for sensitive skinned horses commonly irritated by leather, neoprene, or synthetic fibers This natural fiber is also odor reducing and naturally water repellent The roper style