The Easybreath 500 comes in two different sizes for adults and teens to best fit an individual's facial structure. The full-face mask allows for the most natural breathing patterns and allows you to achieve a 180-degree view while underwater. The Easybreath 500 is designed with anti-fog and anti-leak technology to help ensure you have the best possible experience while in the water.This snorkel mask also utilizes dry-top release to limit any water entry at the top of the nozzle. There’s also a purge valve at the bottom of the apparatus to drain any trapped water while your head is raised. This mask also comes with an elastic strap to easily slide the snorkel mask on and off as needed. When finished, the mask must be washed by hand.