All of our 12’6” Race And Touring Board SUP Leashes are straight (uncoiled) and have 9mm diameters making them exceptionally hard-wearing. We’ve tested them to destruction in large swell in Fuerteventura and gale force wind  and they’ve never broken (yet). Coupled up with our double leash plug system on all our boards you’ll struggle to snap one.  Forget the swim of shame, buy one of these bulletproof leashes and have peace of mind.