The 3/2 Highline Chest Zip Wetsuit. Offering the ultimate in eco-flexibility for your best performance, plus WarmFlight® thermal fleece lining to keep body heat in and water out. And if all that doesn't get your pulse racing, keep in mind that we've also added Flush Lock 2.0 stretch seals to prevent flushing through the wrists & ankles. Our Highline series was created for the most progressive surfers, those who actively seek to push their limits and expect their wetsuits to do the same.