Performance, Flexibility & Power This Suit features the Intermediate Zone Stretch (IZS) Panels & 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 & serious speed, 2XU’s proprietary Velocity Strakes separate foam inserts on the torso. Check out the full 2XU tri range here. Check out the 2XU wetsuit range here. Sizng & Fit Fitting your wetsuit is of great importance & should be done with care & attention. Please refer to our Guide – How to put on a wetsuit – for further information