The Ocean & Earth One XT Cold Water Allround / Comp leash has been specially designed for waters below 18 degrees. Urethane cable has been specially formulated for cold waters. The length of the velcro is longer, so you can put the leash over your wetsuit and booties.
In addition, it benefits from the One Piece Leash Technology construction of the Australian brand. It allows to obtain a very robust and comfortable leash.