The Onda & Mexico is a great solution for beginner and intermediate snorkelers. The Onda is single tempered glass lens mask which ensure a wide view to enjoy the underwater nature. It is made with 100% high quality silicone for ensure comfort and perfect seal of the most part of faces. The buckles are easy-to-use for adjust the strap length. The Mexico snorkel features a wave guard on top to limit the entry of water on the tube. The mouthpiece is made in silicone to ensure comfort.