Officially the worlds strongest surf leash; Ocean & Earth's One Piece XT construction is the latest innovation in the pursuit for the best possible blend of strength and function. In 2010 O&E dropped the first One Piece leash which set new standards for durability and strength this has now been improved again with a new production method and a unique urethane formula for the cord. This new One-XT has improved stretch and memory retention. 40% stronger, 40% more stretch, no joins and no weak points. The One-XT Premium One Piece leash has a 7mm urethane cord, stainless steel swivels, neoprene padded ankle cuff and a webbing rail saver.