via gearpatrol.com
ISOfrane ($99-$139) is an iconic rubber dive strap from the 60s, which, like so many contemporary dive watches, has been resurrected and improved for duty in the 21st century. The name derives from isoprene, which was the rubber compound used to create the original straps, though today a new, proprietary hypoallergenic compound designed for increased strength and wearing comfort takes its place. Originally worn by the likes of Jacques Cousteau in conjunction with iconic watches such as the Omega PloProf, the basic ISOfrane design has proven its mettle time and again in some of the most demanding underwater environments imaginable. $99 - $139