Recognized as the leading triathlon wetsuit on the planet, 2XU has updated its Project X for even greater flexibility and buoyancy than ever before. For summer of 2013, this Suit features new Intermediate Zone Stretch (IZS) Panels and thinner neoprene on the shoulders to deliver unrestricted movement. A foam insert panel elevates body position in the water while new CWEZ X catch panel, engineered from flexible silicone assures comfort. For hydrodynamic stability and serious speed, 2XUs proprietary Velocity Strakes separate foam inserts on the torso.