A good wetsuit is like the perfect pair of undies if everything's working perfectly, you won't even know it's there. That's the idea behind O'Neill's Pyscho Fream Z. E. N. Zip 43 Men's Wetsuit, which combines O'Neill's three most highly engineered neoprenes and tons of tech features to keep you so warm and comfortable that you'll forgot you're not getting barreled in the buff. The Pyscho Freak Z. E. N. is a top of the line franken suit that cribs the best features from the previous Psycho Freak and Psycho 3 to provide warmth in chilly water without restricting movement or rubbing your skin the wrong way. O'Neill constructed the torso from TechoButter 2 Air Firewall neoprene, which gives you unparalleled stretch and heat retention, and built the legs from ultra stretchy and lightweight TechnoButter 2 Firewall, and engineered the arms from TechnoButter 2 to give you killer stretch and mobility. The seams are carefully placed to help you enjoy unencumbered paddling, and each one is finished with stitchless and watertight Double SuperSeam welding that's been urethane sealed and triple glued for maximum waterproofing. Around the wrists and ankles, the SuperSeal watertight cuffs give you a ridiculously snug low and profile seal, while additional Plasma seals form a watertight barrier to prevent flushing. Up top, the Double SuperSeal neck stops water from coming in the top of your suit without choking you. The Pyscho Freak's final major innovation is the Z. E. N. floating zip. It's designed to be fully watertight, but it's also lined with a drain hole equipped panel that O'Neill calls Barrier 2, so any water that does penetrate the zip will be blocked by the Barrier 2 and forced out the drain hole instead of dripping down your back and turning things cold in a hurry.