Creatures of Leisure Pro 6’ Leash. Introducing the DNA Flex Mould: the re-design of the surfing leash that absorbs wave impact, enhancing strength. DNA Flex Mould is a Creatures exclusive design that features a leash mould bonded to the cord in such a way that the two stretch together, eliminating a potential “weak spot” found in traditional leashes and enhancing the overall strength of the leash. Other details include a double stainless steel bearing swivel and 12 month guarantee. 6’ x 9/32” (7mm thick). Creatures of Leisure.