Ergonomically designed, the Mares Ergo Ergonomic Flex Snorkel ensures dry inhalation during snorkeling and SCUBA diving. Absolutely ergonomic shape easily fits the head side and adds to an efficient diving movement. Effortless breathing reduces fatigue for comfortable dive. Featuring Hydrodynamic shape, the Flex Snorkel minimizes drag on and under the water surface. With the lower corrugated flex silicone tube, it allows using any angle without compromising over dry breathing.