When ISOfrane debuted in the 1960s, its innovative design literally changed the shape of rubber dive watch straps. When renowned dive watch makers of the 1960s and 1970s needed a strap, they chose ISOfrane. Now made in Italy by Synchron using a proprietary isoprene-based rubber compound for unparalleled durability and softness, classic, hypoallergenic, 100% silicone-free ISOfrane straps are back and better than ever.
