ROXY's 4/3mm Prologue Back-Zip Wetsuit offers superior performance and durability, with thicker neoprene at the chest for extra warmth and HYPERSTRETCH 3.0 neoprene at the arms and legs for maximum mobility. With a water-tight Hydrowrap neck seal and GBS seams for superior flexibility, this suit is a perfect choice for cooler water conditions. Plus, its eco-friendly design results in a lower carbon footprint. (Good for you, good for the ocean too.)