Add 3 additional millimeters of insulation to your wetsuit while eliminating the rush of cold water down your back. The new 4-way SuperStretch material stretches up to 250% of its original size, making it easier to put on and take off. SuperStretch provides custom fit" so less water will flush in and out of the suit. 3mm body and 5mm hood 4-way Stretch Neoprene Sculpts perfectly to your body Stretches Up to 250% of its Original Size Flat-Stitched throughout entire vest Micro air cells in the SuperStretch neoprene prevent suit from thinning and losing insulation over time The suit will last significantly longer then standard neoprene suits Multiple hood vents allows air trapped in suit to escape Neck Band for Maximum Comfort and Better Seal between wetsuit and vest Easy to put on and take off