The Toughest on the Market Made of an extremely tough, hard resin polyethylene, which will endure hard use and extreme cold. | Great for Mules or Horses Panniers have contoured sides to allow for a better ride, resting against the animal's side without creating pressure points. This also creates a fairly narrow profile so the load will better fit through heavily forested trails. | Perfect Camp Accessory Completely bear proof, ideal for storing food safely at camp. Additionally, pannier accommodates screw-in legs that create a table (Amazon item # WRI099 and sold separately). The lids serve double duty as a table top or cutting board! | Compatible with Decker or Sawbuck pack saddle. |