These Western split reins are made of waterproof beta biothane with Day-Glo overlay for high visibility even in low light. They also feature leather water loop attachments at the bit ends. 

Beta biothane is a coated nylon material that's both strong and pliable, just like high quality leather. Beta is waterproof, fade proof and stretch proof, will not mildew, and can be cleaned with soap and water. It's maintenance free and will never need oiling or conditioning. Learn more about beta biothane here: https://www.twohorsetack.com/t-All%20About%20Beta%20Biothane.aspx