The Cressi DUKE is an innovative successor of historically first full-face mask Medusa. The lateral position of the tube allows for easier, nearly effortless breathing, reduces fogging of the lens and minimizes the risk of residual CO2 build-up. The snorkel tube is divided, so air flows directly into the vision chamber as well as into the breathing chamber. The wide lens ensures panoramic field of vision for a superb view under the water. There is a large outlet valve integrated into the lower chamber. The elastic fabric straps ensure hassle-free comfort during your snorkelling adventures.