Aqualung 7mm Echozip Boots7mm Echozip Boots Product Details Our patented, anatomically correct ERGO design makes the Echozip Boots some of the most comfortable diving footwear available. More than a comfortable fit, these boots are bolstered by strong, durable materials that you can rely on to work during your next underwater excursion. Features Ergonomic Like the rest of the Aqualung boot line, the Echozip uses our patented, anatomically correct ERGO shaped footbed and