Planet Dog's best-selling, eco-friendly harness is naturally dyed pure hemp - one of nature's strongest fibers that makes a super-strong fabric. These Hemp Harnesses are made with a nylon-reinforced plastic and metal hardware for extra durability and safety. The Hemp Harnesses are fully adjustable and fleece-lined for optimal comfort, and minimal chafing. The Hemp Harness will stand up to years of salt-water swims, mud puddle baths, snowy romps, and rolls in the sand.