The Blue Seventy Ironman Helix John Triathlon Wetsuit is the culmination of years of testing and research, The Helix is simply Blue Seventy Ironman's finest suit ever. Proprietary RST (Reactive Stretch Technology) neoprene gives unparalleled buoyancy and flexibility. Paired with quick exit legs, reverse zipper and multi-stretch cuffs, the Helix is faster in the water and quicker through T1. Race tested, Helix prototypes have already helped Blue Seventy's pro athletes lead from the water and finish atop the podium. When you can't afford to compromise performance, this is the suit for you.